18954064

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:463

約数の個数: 40

約数和(自身を含む): 38209608

約数和(自身を除く): 19255544

約数列:

[1, 2, 4, 8, 16, 37, 74, 101, 148, 202, 296, 317, 404, 592, 634, 808, 1268, 1616, 2536, 3737, 5072, 7474, 11729, 14948, 23458, 29896, 32017, 46916, 59792, 64034, 93832, 128068, 187664, 256136, 512272, 1184629, 2369258, 4738516, 9477032, 18954064]

約数ペア:

[(1, 18954064), (2, 9477032), (4, 4738516), (8, 2369258), (16, 1184629), (37, 512272), (74, 256136), (101, 187664), (148, 128068), (202, 93832), (296, 64034), (317, 59792), (404, 46916), (592, 32017), (634, 29896), (808, 23458), (1268, 14948), (1616, 11729), (2536, 7474), (3737, 5072)]