20531550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10529}}^1$

素因数の和:10557

約数の個数: 48

約数和(自身を含む): 54840240

約数和(自身を除く): 34308690

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10529, 21058, 31587, 52645, 63174, 105290, 136877, 157935, 263225, 273754, 315870, 410631, 526450, 684385, 789675, 821262, 1368770, 1579350, 2053155, 3421925, 4106310, 6843850, 10265775, 20531550]

約数ペア:

[(1, 20531550), (2, 10265775), (3, 6843850), (5, 4106310), (6, 3421925), (10, 2053155), (13, 1579350), (15, 1368770), (25, 821262), (26, 789675), (30, 684385), (39, 526450), (50, 410631), (65, 315870), (75, 273754), (78, 263225), (130, 157935), (150, 136877), (195, 105290), (325, 63174), (390, 52645), (650, 31587), (975, 21058), (1950, 10529)]