1662680

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 3777840

約数和(自身を除く): 2115160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 211, 394, 422, 788, 844, 985, 1055, 1576, 1688, 1970, 2110, 3940, 4220, 7880, 8440, 41567, 83134, 166268, 207835, 332536, 415670, 831340, 1662680]

約数ペア:

[(1, 1662680), (2, 831340), (4, 415670), (5, 332536), (8, 207835), (10, 166268), (20, 83134), (40, 41567), (197, 8440), (211, 7880), (394, 4220), (422, 3940), (788, 2110), (844, 1970), (985, 1688), (1055, 1576)]