1618646980

素因数分解:

$2^2\times 5^1\times {\mathrm{15331}}^1\times {\mathrm{5279}}^1$

素因数の和:20619

約数の個数: 24

約数和(自身を含む): 3400024320

約数和(自身を除く): 1781377340

約数列:

[1, 2, 4, 5, 10, 20, 5279, 10558, 15331, 21116, 26395, 30662, 52790, 61324, 76655, 105580, 153310, 306620, 80932349, 161864698, 323729396, 404661745, 809323490, 1618646980]

約数ペア:

[(1, 1618646980), (2, 809323490), (4, 404661745), (5, 323729396), (10, 161864698), (20, 80932349), (5279, 306620), (10558, 153310), (15331, 105580), (21116, 76655), (26395, 61324), (30662, 52790)]