81227216

素因数分解:

$2^4\times 7^1\times {\mathrm{229}}^1\times {\mathrm{3167}}^1$

素因数の和:3411

約数の個数: 40

約数和(自身を含む): 180702720

約数和(自身を除く): 99475504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 229, 458, 916, 1603, 1832, 3167, 3206, 3664, 6334, 6412, 12668, 12824, 22169, 25336, 25648, 44338, 50672, 88676, 177352, 354704, 725243, 1450486, 2900972, 5076701, 5801944, 10153402, 11603888, 20306804, 40613608, 81227216]

約数ペア:

[(1, 81227216), (2, 40613608), (4, 20306804), (7, 11603888), (8, 10153402), (14, 5801944), (16, 5076701), (28, 2900972), (56, 1450486), (112, 725243), (229, 354704), (458, 177352), (916, 88676), (1603, 50672), (1832, 44338), (3167, 25648), (3206, 25336), (3664, 22169), (6334, 12824), (6412, 12668)]