18621020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1597}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 43491168

約数和(自身を除く): 24870148

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 1597, 2332, 2915, 3194, 5830, 6388, 7985, 11660, 15970, 17567, 31940, 35134, 70268, 84641, 87835, 169282, 175670, 338564, 351340, 423205, 846410, 931051, 1692820, 1862102, 3724204, 4655255, 9310510, 18621020]

約数ペア:

[(1, 18621020), (2, 9310510), (4, 4655255), (5, 3724204), (10, 1862102), (11, 1692820), (20, 931051), (22, 846410), (44, 423205), (53, 351340), (55, 338564), (106, 175670), (110, 169282), (212, 87835), (220, 84641), (265, 70268), (530, 35134), (583, 31940), (1060, 17567), (1166, 15970), (1597, 11660), (2332, 7985), (2915, 6388), (3194, 5830)]