20123215336

素因数分解:

$2^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{19571}}^1$

素因数の和:19695

約数の個数: 96

約数和(自身を含む): 45650515680

約数和(自身を除く): 25527300344

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 49, 56, 61, 86, 98, 122, 172, 196, 244, 301, 344, 392, 427, 488, 602, 854, 1204, 1708, 2107, 2408, 2623, 2989, 3416, 4214, 5246, 5978, 8428, 10492, 11956, 16856, 18361, 19571, 20984, 23912, 36722, 39142, 73444, 78284, 128527, 136997, 146888, 156568, 257054, 273994, 514108, 547988, 841553, 958979, 1028216, 1095976, 1193831, 1683106, 1917958, 2387662, 3366212, 3835916, 4775324, 5890871, 6732424, 7671832, 8356817, 9550648, 11781742, 16713634, 23563484, 33427268, 41236097, 47126968, 51334733, 58497719, 66854536, 82472194, 102669466, 116995438, 164944388, 205338932, 233990876, 329888776, 359343131, 410677864, 467981752, 718686262, 1437372524, 2515401917, 2874745048, 5030803834, 10061607668, 20123215336]

約数ペア:

[(1, 20123215336), (2, 10061607668), (4, 5030803834), (7, 2874745048), (8, 2515401917), (14, 1437372524), (28, 718686262), (43, 467981752), (49, 410677864), (56, 359343131), (61, 329888776), (86, 233990876), (98, 205338932), (122, 164944388), (172, 116995438), (196, 102669466), (244, 82472194), (301, 66854536), (344, 58497719), (392, 51334733), (427, 47126968), (488, 41236097), (602, 33427268), (854, 23563484), (1204, 16713634), (1708, 11781742), (2107, 9550648), (2408, 8356817), (2623, 7671832), (2989, 6732424), (3416, 5890871), (4214, 4775324), (5246, 3835916), (5978, 3366212), (8428, 2387662), (10492, 1917958), (11956, 1683106), (16856, 1193831), (18361, 1095976), (19571, 1028216), (20984, 958979), (23912, 841553), (36722, 547988), (39142, 514108), (73444, 273994), (78284, 257054), (128527, 156568), (136997, 146888)]