691004080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{664427}}^1$

素因数の和:664453

約数の個数: 40

約数和(自身を含む): 1730170512

約数和(自身を除く): 1039166432

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 664427, 1328854, 2657708, 3322135, 5315416, 6644270, 8637551, 10630832, 13288540, 17275102, 26577080, 34550204, 43187755, 53154160, 69100408, 86375510, 138200816, 172751020, 345502040, 691004080]

約数ペア:

[(1, 691004080), (2, 345502040), (4, 172751020), (5, 138200816), (8, 86375510), (10, 69100408), (13, 53154160), (16, 43187755), (20, 34550204), (26, 26577080), (40, 17275102), (52, 13288540), (65, 10630832), (80, 8637551), (104, 6644270), (130, 5315416), (208, 3322135), (260, 2657708), (520, 1328854), (1040, 664427)]