82977640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 191514960

約数和(自身を除く): 108537320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 157, 181, 292, 314, 362, 365, 584, 628, 724, 730, 785, 905, 1256, 1448, 1460, 1570, 1810, 2920, 3140, 3620, 6280, 7240, 11461, 13213, 22922, 26426, 28417, 45844, 52852, 56834, 57305, 66065, 91688, 105704, 113668, 114610, 132130, 142085, 227336, 229220, 264260, 284170, 458440, 528520, 568340, 1136680, 2074441, 4148882, 8297764, 10372205, 16595528, 20744410, 41488820, 82977640]

約数ペア:

[(1, 82977640), (2, 41488820), (4, 20744410), (5, 16595528), (8, 10372205), (10, 8297764), (20, 4148882), (40, 2074441), (73, 1136680), (146, 568340), (157, 528520), (181, 458440), (292, 284170), (314, 264260), (362, 229220), (365, 227336), (584, 142085), (628, 132130), (724, 114610), (730, 113668), (785, 105704), (905, 91688), (1256, 66065), (1448, 57305), (1460, 56834), (1570, 52852), (1810, 45844), (2920, 28417), (3140, 26426), (3620, 22922), (6280, 13213), (7240, 11461)]