261918704

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:1113

約数の個数: 40

約数和(自身を含む): 515347968

約数和(自身を除く): 253429264

約数列:

[1, 2, 4, 8, 16, 127, 157, 254, 314, 508, 628, 821, 1016, 1256, 1642, 2032, 2512, 3284, 6568, 13136, 19939, 39878, 79756, 104267, 128897, 159512, 208534, 257794, 319024, 417068, 515588, 834136, 1031176, 1668272, 2062352, 16369919, 32739838, 65479676, 130959352, 261918704]

約数ペア:

[(1, 261918704), (2, 130959352), (4, 65479676), (8, 32739838), (16, 16369919), (127, 2062352), (157, 1668272), (254, 1031176), (314, 834136), (508, 515588), (628, 417068), (821, 319024), (1016, 257794), (1256, 208534), (1642, 159512), (2032, 128897), (2512, 104267), (3284, 79756), (6568, 39878), (13136, 19939)]