1278967516

素因数分解:

$2^2\times {\mathrm{809}}^1\times {\mathrm{395231}}^1$

素因数の和:396044

約数の個数: 12

約数和(自身を含む): 2240965440

約数和(自身を除く): 961997924

約数列:

[1, 2, 4, 809, 1618, 3236, 395231, 790462, 1580924, 319741879, 639483758, 1278967516]

約数ペア:

[(1, 1278967516), (2, 639483758), (4, 319741879), (809, 1580924), (1618, 790462), (3236, 395231)]