1557585280

素因数分解:

$2^7\times 5^1\times {\mathrm{2433727}}^1$

素因数の和:2433746

約数の個数: 32

約数和(自身を含む): 3723603840

約数和(自身を除く): 2166018560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2433727, 4867454, 9734908, 12168635, 19469816, 24337270, 38939632, 48674540, 77879264, 97349080, 155758528, 194698160, 311517056, 389396320, 778792640, 1557585280]

約数ペア:

[(1, 1557585280), (2, 778792640), (4, 389396320), (5, 311517056), (8, 194698160), (10, 155758528), (16, 97349080), (20, 77879264), (32, 48674540), (40, 38939632), (64, 24337270), (80, 19469816), (128, 12168635), (160, 9734908), (320, 4867454), (640, 2433727)]