81486972

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 240

約数和(自身を含む): 268871680

約数和(自身を除く): 187384708

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 31, 36, 38, 42, 54, 57, 61, 62, 63, 76, 81, 84, 93, 108, 114, 122, 124, 126, 133, 162, 171, 183, 186, 189, 217, 228, 244, 252, 266, 279, 324, 342, 366, 372, 378, 399, 427, 434, 513, 532, 549, 558, 567, 589, 651, 684, 732, 756, 798, 837, 854, 868, 1026, 1098, 1116, 1134, 1159, 1178, 1197, 1281, 1302, 1539, 1596, 1647, 1674, 1708, 1767, 1891, 1953, 2052, 2196, 2268, 2318, 2356, 2394, 2511, 2562, 2604, 3078, 3294, 3348, 3477, 3534, 3591, 3782, 3843, 3906, 4123, 4636, 4788, 4941, 5022, 5124, 5301, 5673, 5859, 6156, 6588, 6954, 7068, 7182, 7564, 7686, 7812, 8113, 8246, 9882, 10044, 10431, 10602, 10773, 11346, 11529, 11718, 12369, 13237, 13908, 14364, 15372, 15903, 16226, 16492, 17019, 17577, 19764, 20862, 21204, 21546, 22692, 23058, 23436, 24339, 24738, 26474, 31293, 31806, 32452, 34038, 34587, 35154, 35929, 37107, 39711, 41724, 43092, 46116, 47709, 48678, 49476, 51057, 52948, 62586, 63612, 68076, 69174, 70308, 71858, 73017, 74214, 79422, 93879, 95418, 97356, 102114, 107787, 111321, 119133, 125172, 138348, 143716, 146034, 148428, 153171, 158844, 187758, 190836, 204228, 215574, 219051, 222642, 238266, 251503, 292068, 306342, 323361, 333963, 357399, 375516, 431148, 438102, 445284, 476532, 503006, 612684, 646722, 657153, 667926, 714798, 754509, 876204, 970083, 1006012, 1072197, 1293444, 1314306, 1335852, 1429596, 1509018, 1940166, 2144394, 2263527, 2628612, 2910249, 3018036, 3880332, 4288788, 4527054, 5820498, 6790581, 9054108, 11640996, 13581162, 20371743, 27162324, 40743486, 81486972]

約数ペア:

[(1, 81486972), (2, 40743486), (3, 27162324), (4, 20371743), (6, 13581162), (7, 11640996), (9, 9054108), (12, 6790581), (14, 5820498), (18, 4527054), (19, 4288788), (21, 3880332), (27, 3018036), (28, 2910249), (31, 2628612), (36, 2263527), (38, 2144394), (42, 1940166), (54, 1509018), (57, 1429596), (61, 1335852), (62, 1314306), (63, 1293444), (76, 1072197), (81, 1006012), (84, 970083), (93, 876204), (108, 754509), (114, 714798), (122, 667926), (124, 657153), (126, 646722), (133, 612684), (162, 503006), (171, 476532), (183, 445284), (186, 438102), (189, 431148), (217, 375516), (228, 357399), (244, 333963), (252, 323361), (266, 306342), (279, 292068), (324, 251503), (342, 238266), (366, 222642), (372, 219051), (378, 215574), (399, 204228), (427, 190836), (434, 187758), (513, 158844), (532, 153171), (549, 148428), (558, 146034), (567, 143716), (589, 138348), (651, 125172), (684, 119133), (732, 111321), (756, 107787), (798, 102114), (837, 97356), (854, 95418), (868, 93879), (1026, 79422), (1098, 74214), (1116, 73017), (1134, 71858), (1159, 70308), (1178, 69174), (1197, 68076), (1281, 63612), (1302, 62586), (1539, 52948), (1596, 51057), (1647, 49476), (1674, 48678), (1708, 47709), (1767, 46116), (1891, 43092), (1953, 41724), (2052, 39711), (2196, 37107), (2268, 35929), (2318, 35154), (2356, 34587), (2394, 34038), (2511, 32452), (2562, 31806), (2604, 31293), (3078, 26474), (3294, 24738), (3348, 24339), (3477, 23436), (3534, 23058), (3591, 22692), (3782, 21546), (3843, 21204), (3906, 20862), (4123, 19764), (4636, 17577), (4788, 17019), (4941, 16492), (5022, 16226), (5124, 15903), (5301, 15372), (5673, 14364), (5859, 13908), (6156, 13237), (6588, 12369), (6954, 11718), (7068, 11529), (7182, 11346), (7564, 10773), (7686, 10602), (7812, 10431), (8113, 10044), (8246, 9882)]