21213882180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1\times {\mathrm{659}}^1$

素因数の和:1352

約数の個数: 240

約数和(自身を含む): 68907041280

約数和(自身を除く): 47693159100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 620, 641, 659, 810, 837, 930, 1116, 1282, 1318, 1395, 1620, 1674, 1860, 1923, 1977, 2511, 2564, 2636, 2790, 3205, 3295, 3348, 3846, 3954, 4185, 5022, 5580, 5769, 5931, 6410, 6590, 7692, 7908, 8370, 9615, 9885, 10044, 11538, 11862, 12555, 12820, 13180, 16740, 17307, 17793, 19230, 19770, 19871, 20429, 23076, 23724, 25110, 28845, 29655, 34614, 35586, 38460, 39540, 39742, 40858, 50220, 51921, 53379, 57690, 59310, 59613, 61287, 69228, 71172, 79484, 81716, 86535, 88965, 99355, 102145, 103842, 106758, 115380, 118620, 119226, 122574, 173070, 177930, 178839, 183861, 198710, 204290, 207684, 213516, 238452, 245148, 259605, 266895, 298065, 306435, 346140, 355860, 357678, 367722, 397420, 408580, 422419, 519210, 533790, 536517, 551583, 596130, 612870, 715356, 735444, 844838, 894195, 919305, 1038420, 1067580, 1073034, 1103166, 1192260, 1225740, 1267257, 1609551, 1654749, 1689676, 1788390, 1838610, 2112095, 2146068, 2206332, 2534514, 2682585, 2757915, 3219102, 3309498, 3576780, 3677220, 3801771, 4224190, 5069028, 5365170, 5515830, 6336285, 6438204, 6618996, 7603542, 8047755, 8273745, 8448380, 10730340, 11031660, 11405313, 12672570, 13094989, 15207084, 16095510, 16547490, 19008855, 22810626, 25345140, 26189978, 32191020, 33094980, 34215939, 38017710, 39284967, 45621252, 52379956, 57026565, 65474945, 68431878, 76035420, 78569934, 114053130, 117854901, 130949890, 136863756, 157139868, 171079695, 196424835, 228106260, 235709802, 261899780, 342159390, 353564703, 392849670, 471419604, 589274505, 684318780, 707129406, 785699340, 1060694109, 1178549010, 1414258812, 1767823515, 2121388218, 2357098020, 3535647030, 4242776436, 5303470545, 7071294060, 10606941090, 21213882180]

約数ペア:

[(1, 21213882180), (2, 10606941090), (3, 7071294060), (4, 5303470545), (5, 4242776436), (6, 3535647030), (9, 2357098020), (10, 2121388218), (12, 1767823515), (15, 1414258812), (18, 1178549010), (20, 1060694109), (27, 785699340), (30, 707129406), (31, 684318780), (36, 589274505), (45, 471419604), (54, 392849670), (60, 353564703), (62, 342159390), (81, 261899780), (90, 235709802), (93, 228106260), (108, 196424835), (124, 171079695), (135, 157139868), (155, 136863756), (162, 130949890), (180, 117854901), (186, 114053130), (270, 78569934), (279, 76035420), (310, 68431878), (324, 65474945), (372, 57026565), (405, 52379956), (465, 45621252), (540, 39284967), (558, 38017710), (620, 34215939), (641, 33094980), (659, 32191020), (810, 26189978), (837, 25345140), (930, 22810626), (1116, 19008855), (1282, 16547490), (1318, 16095510), (1395, 15207084), (1620, 13094989), (1674, 12672570), (1860, 11405313), (1923, 11031660), (1977, 10730340), (2511, 8448380), (2564, 8273745), (2636, 8047755), (2790, 7603542), (3205, 6618996), (3295, 6438204), (3348, 6336285), (3846, 5515830), (3954, 5365170), (4185, 5069028), (5022, 4224190), (5580, 3801771), (5769, 3677220), (5931, 3576780), (6410, 3309498), (6590, 3219102), (7692, 2757915), (7908, 2682585), (8370, 2534514), (9615, 2206332), (9885, 2146068), (10044, 2112095), (11538, 1838610), (11862, 1788390), (12555, 1689676), (12820, 1654749), (13180, 1609551), (16740, 1267257), (17307, 1225740), (17793, 1192260), (19230, 1103166), (19770, 1073034), (19871, 1067580), (20429, 1038420), (23076, 919305), (23724, 894195), (25110, 844838), (28845, 735444), (29655, 715356), (34614, 612870), (35586, 596130), (38460, 551583), (39540, 536517), (39742, 533790), (40858, 519210), (50220, 422419), (51921, 408580), (53379, 397420), (57690, 367722), (59310, 357678), (59613, 355860), (61287, 346140), (69228, 306435), (71172, 298065), (79484, 266895), (81716, 259605), (86535, 245148), (88965, 238452), (99355, 213516), (102145, 207684), (103842, 204290), (106758, 198710), (115380, 183861), (118620, 178839), (119226, 177930), (122574, 173070)]