81978771420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{263411}}^1$

素因数の和:263465

約数の個数: 288

約数和(自身を含む): 322163412480

約数和(自身を除く): 240184641060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 26, 28, 30, 35, 36, 38, 39, 42, 45, 52, 57, 60, 63, 65, 70, 76, 78, 84, 90, 91, 95, 105, 114, 117, 126, 130, 133, 140, 156, 171, 180, 182, 190, 195, 210, 228, 234, 247, 252, 260, 266, 273, 285, 315, 342, 364, 380, 390, 399, 420, 455, 468, 494, 532, 546, 570, 585, 630, 665, 684, 741, 780, 798, 819, 855, 910, 988, 1092, 1140, 1170, 1197, 1235, 1260, 1330, 1365, 1482, 1596, 1638, 1710, 1729, 1820, 1995, 2223, 2340, 2394, 2470, 2660, 2730, 2964, 3276, 3420, 3458, 3705, 3990, 4095, 4446, 4788, 4940, 5187, 5460, 5985, 6916, 7410, 7980, 8190, 8645, 8892, 10374, 11115, 11970, 14820, 15561, 16380, 17290, 20748, 22230, 23940, 25935, 31122, 34580, 44460, 51870, 62244, 77805, 103740, 155610, 263411, 311220, 526822, 790233, 1053644, 1317055, 1580466, 1843877, 2370699, 2634110, 3160932, 3424343, 3687754, 3951165, 4741398, 5004809, 5268220, 5531631, 6848686, 7375508, 7902330, 9219385, 9482796, 10009618, 10273029, 11063262, 11853495, 13697372, 15014427, 15804660, 16594893, 17121715, 18438770, 20019236, 20546058, 22126524, 23706990, 23970401, 25024045, 27658155, 30028854, 30819087, 33189786, 34243430, 35033663, 36877540, 41092116, 45043281, 47413980, 47940802, 50048090, 51365145, 55316310, 60057708, 61638174, 65062517, 66379572, 68486860, 70067326, 71911203, 75072135, 82974465, 90086562, 95881604, 100096180, 102730290, 105100989, 110632620, 119852005, 123276348, 130125034, 140134652, 143822406, 150144270, 154095435, 165948930, 175168315, 180173124, 195187551, 205460580, 210201978, 215733609, 225216405, 239704010, 260250068, 287644812, 300288540, 308190870, 315302967, 325312585, 331897860, 350336630, 359556015, 390375102, 420403956, 431467218, 450432810, 455437619, 479408020, 525504945, 585562653, 616381740, 630605934, 650625170, 700673260, 719112030, 780750204, 862934436, 900865620, 910875238, 975937755, 1051009890, 1078668045, 1171125306, 1261211868, 1301250340, 1366312857, 1438224060, 1576514835, 1821750476, 1951875510, 2102019780, 2157336090, 2277188095, 2342250612, 2732625714, 2927813265, 3153029670, 3903751020, 4098938571, 4314672180, 4554376190, 5465251428, 5855626530, 6306059340, 6831564285, 8197877142, 9108752380, 11711253060, 13663128570, 16395754284, 20494692855, 27326257140, 40989385710, 81978771420]

約数ペア:

[(1, 81978771420), (2, 40989385710), (3, 27326257140), (4, 20494692855), (5, 16395754284), (6, 13663128570), (7, 11711253060), (9, 9108752380), (10, 8197877142), (12, 6831564285), (13, 6306059340), (14, 5855626530), (15, 5465251428), (18, 4554376190), (19, 4314672180), (20, 4098938571), (21, 3903751020), (26, 3153029670), (28, 2927813265), (30, 2732625714), (35, 2342250612), (36, 2277188095), (38, 2157336090), (39, 2102019780), (42, 1951875510), (45, 1821750476), (52, 1576514835), (57, 1438224060), (60, 1366312857), (63, 1301250340), (65, 1261211868), (70, 1171125306), (76, 1078668045), (78, 1051009890), (84, 975937755), (90, 910875238), (91, 900865620), (95, 862934436), (105, 780750204), (114, 719112030), (117, 700673260), (126, 650625170), (130, 630605934), (133, 616381740), (140, 585562653), (156, 525504945), (171, 479408020), (180, 455437619), (182, 450432810), (190, 431467218), (195, 420403956), (210, 390375102), (228, 359556015), (234, 350336630), (247, 331897860), (252, 325312585), (260, 315302967), (266, 308190870), (273, 300288540), (285, 287644812), (315, 260250068), (342, 239704010), (364, 225216405), (380, 215733609), (390, 210201978), (399, 205460580), (420, 195187551), (455, 180173124), (468, 175168315), (494, 165948930), (532, 154095435), (546, 150144270), (570, 143822406), (585, 140134652), (630, 130125034), (665, 123276348), (684, 119852005), (741, 110632620), (780, 105100989), (798, 102730290), (819, 100096180), (855, 95881604), (910, 90086562), (988, 82974465), (1092, 75072135), (1140, 71911203), (1170, 70067326), (1197, 68486860), (1235, 66379572), (1260, 65062517), (1330, 61638174), (1365, 60057708), (1482, 55316310), (1596, 51365145), (1638, 50048090), (1710, 47940802), (1729, 47413980), (1820, 45043281), (1995, 41092116), (2223, 36877540), (2340, 35033663), (2394, 34243430), (2470, 33189786), (2660, 30819087), (2730, 30028854), (2964, 27658155), (3276, 25024045), (3420, 23970401), (3458, 23706990), (3705, 22126524), (3990, 20546058), (4095, 20019236), (4446, 18438770), (4788, 17121715), (4940, 16594893), (5187, 15804660), (5460, 15014427), (5985, 13697372), (6916, 11853495), (7410, 11063262), (7980, 10273029), (8190, 10009618), (8645, 9482796), (8892, 9219385), (10374, 7902330), (11115, 7375508), (11970, 6848686), (14820, 5531631), (15561, 5268220), (16380, 5004809), (17290, 4741398), (20748, 3951165), (22230, 3687754), (23940, 3424343), (25935, 3160932), (31122, 2634110), (34580, 2370699), (44460, 1843877), (51870, 1580466), (62244, 1317055), (77805, 1053644), (103740, 790233), (155610, 526822), (263411, 311220)]