1277980094

素因数分解:

$2^1\times {\mathrm{821}}^1\times {\mathrm{778307}}^1$

素因数の和:779130

約数の個数: 8

約数和(自身を含む): 1919307528

約数和(自身を除く): 641327434

約数列:

[1, 2, 821, 1642, 778307, 1556614, 638990047, 1277980094]

約数ペア:

[(1, 1277980094), (2, 638990047), (821, 1556614), (1642, 778307)]