2918840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1697}}^1$

素因数の和:1751

約数の個数: 32

約数和(自身を含む): 6724080

約数和(自身を除く): 3805240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1697, 1720, 3394, 6788, 8485, 13576, 16970, 33940, 67880, 72971, 145942, 291884, 364855, 583768, 729710, 1459420, 2918840]

約数ペア:

[(1, 2918840), (2, 1459420), (4, 729710), (5, 583768), (8, 364855), (10, 291884), (20, 145942), (40, 72971), (43, 67880), (86, 33940), (172, 16970), (215, 13576), (344, 8485), (430, 6788), (860, 3394), (1697, 1720)]