30420940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2609}}^1$

素因数の和:2682

約数の個数: 48

約数和(自身を含む): 71033760

約数和(自身を除く): 40612820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 2332, 2609, 2915, 5218, 5830, 10436, 11660, 13045, 26090, 28699, 52180, 57398, 114796, 138277, 143495, 276554, 286990, 553108, 573980, 691385, 1382770, 1521047, 2765540, 3042094, 6084188, 7605235, 15210470, 30420940]

約数ペア:

[(1, 30420940), (2, 15210470), (4, 7605235), (5, 6084188), (10, 3042094), (11, 2765540), (20, 1521047), (22, 1382770), (44, 691385), (53, 573980), (55, 553108), (106, 286990), (110, 276554), (212, 143495), (220, 138277), (265, 114796), (530, 57398), (583, 52180), (1060, 28699), (1166, 26090), (2332, 13045), (2609, 11660), (2915, 10436), (5218, 5830)]