20512201976

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{22651}}^1$

素因数の和:22924

約数の個数: 64

約数和(自身を含む): 44666119680

約数和(自身を除く): 24153917704

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 157, 206, 314, 412, 628, 721, 824, 1099, 1256, 1442, 2198, 2884, 4396, 5768, 8792, 16171, 22651, 32342, 45302, 64684, 90604, 113197, 129368, 158557, 181208, 226394, 317114, 452788, 634228, 905576, 1268456, 2333053, 3556207, 4666106, 7112414, 9332212, 14224828, 16331371, 18664424, 24893449, 28449656, 32662742, 49786898, 65325484, 99573796, 130650968, 199147592, 366289321, 732578642, 1465157284, 2564025247, 2930314568, 5128050494, 10256100988, 20512201976]

約数ペア:

[(1, 20512201976), (2, 10256100988), (4, 5128050494), (7, 2930314568), (8, 2564025247), (14, 1465157284), (28, 732578642), (56, 366289321), (103, 199147592), (157, 130650968), (206, 99573796), (314, 65325484), (412, 49786898), (628, 32662742), (721, 28449656), (824, 24893449), (1099, 18664424), (1256, 16331371), (1442, 14224828), (2198, 9332212), (2884, 7112414), (4396, 4666106), (5768, 3556207), (8792, 2333053), (16171, 1268456), (22651, 905576), (32342, 634228), (45302, 452788), (64684, 317114), (90604, 226394), (113197, 181208), (129368, 158557)]