1618160

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:305

約数の個数: 40

約数和(自身を含む): 3816720

約数和(自身を除く): 2198560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 179, 226, 358, 452, 565, 716, 895, 904, 1130, 1432, 1790, 1808, 2260, 2864, 3580, 4520, 7160, 9040, 14320, 20227, 40454, 80908, 101135, 161816, 202270, 323632, 404540, 809080, 1618160]

約数ペア:

[(1, 1618160), (2, 809080), (4, 404540), (5, 323632), (8, 202270), (10, 161816), (16, 101135), (20, 80908), (40, 40454), (80, 20227), (113, 14320), (179, 9040), (226, 7160), (358, 4520), (452, 3580), (565, 2864), (716, 2260), (895, 1808), (904, 1790), (1130, 1432)]