639732881

素因数分解:

${\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1\times {\mathrm{557}}^1$

素因数の和:964

約数の個数: 16

約数和(自身を含む): 665113680

約数和(自身を除く): 25380799

約数列:

[1, 41, 109, 257, 557, 4469, 10537, 22837, 28013, 60713, 143149, 1148533, 2489233, 5869109, 15603241, 639732881]

約数ペア:

[(1, 639732881), (41, 15603241), (109, 5869109), (257, 2489233), (557, 1148533), (4469, 143149), (10537, 60713), (22837, 28013)]