407723740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1\times {\mathrm{1223}}^1$

素因数の和:1522

約数の個数: 48

約数和(自身を含む): 871879680

約数和(自身を除く): 464155940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 211, 316, 395, 422, 790, 844, 1055, 1223, 1580, 2110, 2446, 4220, 4892, 6115, 12230, 16669, 24460, 33338, 66676, 83345, 96617, 166690, 193234, 258053, 333380, 386468, 483085, 516106, 966170, 1032212, 1290265, 1932340, 2580530, 5161060, 20386187, 40772374, 81544748, 101930935, 203861870, 407723740]

約数ペア:

[(1, 407723740), (2, 203861870), (4, 101930935), (5, 81544748), (10, 40772374), (20, 20386187), (79, 5161060), (158, 2580530), (211, 1932340), (316, 1290265), (395, 1032212), (422, 966170), (790, 516106), (844, 483085), (1055, 386468), (1223, 333380), (1580, 258053), (2110, 193234), (2446, 166690), (4220, 96617), (4892, 83345), (6115, 66676), (12230, 33338), (16669, 24460)]