261508336

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{1091}}^1$

素因数の和:1381

約数の個数: 40

約数和(自身を含む): 516716928

約数和(自身を除く): 255208592

約数列:

[1, 2, 4, 8, 16, 71, 142, 211, 284, 422, 568, 844, 1091, 1136, 1688, 2182, 3376, 4364, 8728, 14981, 17456, 29962, 59924, 77461, 119848, 154922, 230201, 239696, 309844, 460402, 619688, 920804, 1239376, 1841608, 3683216, 16344271, 32688542, 65377084, 130754168, 261508336]

約数ペア:

[(1, 261508336), (2, 130754168), (4, 65377084), (8, 32688542), (16, 16344271), (71, 3683216), (142, 1841608), (211, 1239376), (284, 920804), (422, 619688), (568, 460402), (844, 309844), (1091, 239696), (1136, 230201), (1688, 154922), (2182, 119848), (3376, 77461), (4364, 59924), (8728, 29962), (14981, 17456)]