2640005680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2538467}}^1$

素因数の和:2538493

約数の個数: 40

約数和(自身を含む): 6610170672

約数和(自身を除く): 3970164992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2538467, 5076934, 10153868, 12692335, 20307736, 25384670, 33000071, 40615472, 50769340, 66000142, 101538680, 132000284, 165000355, 203077360, 264000568, 330000710, 528001136, 660001420, 1320002840, 2640005680]

約数ペア:

[(1, 2640005680), (2, 1320002840), (4, 660001420), (5, 528001136), (8, 330000710), (10, 264000568), (13, 203077360), (16, 165000355), (20, 132000284), (26, 101538680), (40, 66000142), (52, 50769340), (65, 40615472), (80, 33000071), (104, 25384670), (130, 20307736), (208, 12692335), (260, 10153868), (520, 5076934), (1040, 2538467)]