639330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 1556928

約数和(自身を除く): 917598

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 101, 202, 211, 303, 422, 505, 606, 633, 1010, 1055, 1266, 1515, 2110, 3030, 3165, 6330, 21311, 42622, 63933, 106555, 127866, 213110, 319665, 639330]

約数ペア:

[(1, 639330), (2, 319665), (3, 213110), (5, 127866), (6, 106555), (10, 63933), (15, 42622), (30, 21311), (101, 6330), (202, 3165), (211, 3030), (303, 2110), (422, 1515), (505, 1266), (606, 1055), (633, 1010)]