20255625

素因数分解:

$3^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:316

約数の個数: 60

約数和(自身を含む): 39515476

約数和(自身を除く): 19259851

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 225, 277, 325, 375, 585, 625, 831, 975, 1125, 1385, 1625, 1875, 2493, 2925, 3601, 4155, 4875, 5625, 6925, 8125, 10803, 12465, 14625, 18005, 20775, 24375, 32409, 34625, 54015, 62325, 73125, 90025, 103875, 162045, 173125, 270075, 311625, 450125, 519375, 810225, 1350375, 1558125, 2250625, 4051125, 6751875, 20255625]

約数ペア:

[(1, 20255625), (3, 6751875), (5, 4051125), (9, 2250625), (13, 1558125), (15, 1350375), (25, 810225), (39, 519375), (45, 450125), (65, 311625), (75, 270075), (117, 173125), (125, 162045), (195, 103875), (225, 90025), (277, 73125), (325, 62325), (375, 54015), (585, 34625), (625, 32409), (831, 24375), (975, 20775), (1125, 18005), (1385, 14625), (1625, 12465), (1875, 10803), (2493, 8125), (2925, 6925), (3601, 5625), (4155, 4875)]