21209657520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{13729}}^1$

素因数の和:13943

約数の個数: 160

約数和(自身を含む): 67787536320

約数和(自身を除く): 46577878800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 157, 164, 205, 240, 246, 314, 328, 410, 471, 492, 615, 628, 656, 785, 820, 942, 984, 1230, 1256, 1570, 1640, 1884, 1968, 2355, 2460, 2512, 3140, 3280, 3768, 4710, 4920, 6280, 6437, 7536, 9420, 9840, 12560, 12874, 13729, 18840, 19311, 25748, 27458, 32185, 37680, 38622, 41187, 51496, 54916, 64370, 68645, 77244, 82374, 96555, 102992, 109832, 128740, 137290, 154488, 164748, 193110, 205935, 219664, 257480, 274580, 308976, 329496, 386220, 411870, 514960, 549160, 562889, 658992, 772440, 823740, 1098320, 1125778, 1544880, 1647480, 1688667, 2155453, 2251556, 2814445, 3294960, 3377334, 4310906, 4503112, 5628890, 6466359, 6754668, 8443335, 8621812, 9006224, 10777265, 11257780, 12932718, 13509336, 16886670, 17243624, 21554530, 22515560, 25865436, 27018672, 32331795, 33773340, 34487248, 43109060, 45031120, 51730872, 64663590, 67546680, 86218120, 88373573, 103461744, 129327180, 135093360, 172436240, 176747146, 258654360, 265120719, 353494292, 441867865, 517308720, 530241438, 706988584, 883735730, 1060482876, 1325603595, 1413977168, 1767471460, 2120965752, 2651207190, 3534942920, 4241931504, 5302414380, 7069885840, 10604828760, 21209657520]

約数ペア:

[(1, 21209657520), (2, 10604828760), (3, 7069885840), (4, 5302414380), (5, 4241931504), (6, 3534942920), (8, 2651207190), (10, 2120965752), (12, 1767471460), (15, 1413977168), (16, 1325603595), (20, 1060482876), (24, 883735730), (30, 706988584), (40, 530241438), (41, 517308720), (48, 441867865), (60, 353494292), (80, 265120719), (82, 258654360), (120, 176747146), (123, 172436240), (157, 135093360), (164, 129327180), (205, 103461744), (240, 88373573), (246, 86218120), (314, 67546680), (328, 64663590), (410, 51730872), (471, 45031120), (492, 43109060), (615, 34487248), (628, 33773340), (656, 32331795), (785, 27018672), (820, 25865436), (942, 22515560), (984, 21554530), (1230, 17243624), (1256, 16886670), (1570, 13509336), (1640, 12932718), (1884, 11257780), (1968, 10777265), (2355, 9006224), (2460, 8621812), (2512, 8443335), (3140, 6754668), (3280, 6466359), (3768, 5628890), (4710, 4503112), (4920, 4310906), (6280, 3377334), (6437, 3294960), (7536, 2814445), (9420, 2251556), (9840, 2155453), (12560, 1688667), (12874, 1647480), (13729, 1544880), (18840, 1125778), (19311, 1098320), (25748, 823740), (27458, 772440), (32185, 658992), (37680, 562889), (38622, 549160), (41187, 514960), (51496, 411870), (54916, 386220), (64370, 329496), (68645, 308976), (77244, 274580), (82374, 257480), (96555, 219664), (102992, 205935), (109832, 193110), (128740, 164748), (137290, 154488)]