639625548

素因数分解:

$2^2\times 3^1\times {\mathrm{223}}^1\times {\mathrm{239023}}^1$

素因数の和:239253

約数の個数: 24

約数和(自身を含む): 1499158528

約数和(自身を除く): 859532980

約数列:

[1, 2, 3, 4, 6, 12, 223, 446, 669, 892, 1338, 2676, 239023, 478046, 717069, 956092, 1434138, 2868276, 53302129, 106604258, 159906387, 213208516, 319812774, 639625548]

約数ペア:

[(1, 639625548), (2, 319812774), (3, 213208516), (4, 159906387), (6, 106604258), (12, 53302129), (223, 2868276), (446, 1434138), (669, 956092), (892, 717069), (1338, 478046), (2676, 239023)]