20450625

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{839}}^1$

素因数の和:875

約数の個数: 40

約数和(自身を含む): 36738240

約数和(自身を除く): 16287615

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 625, 839, 975, 1625, 1875, 2517, 4195, 4875, 8125, 10907, 12585, 20975, 24375, 32721, 54535, 62925, 104875, 163605, 272675, 314625, 524375, 818025, 1363375, 1573125, 4090125, 6816875, 20450625]

約数ペア:

[(1, 20450625), (3, 6816875), (5, 4090125), (13, 1573125), (15, 1363375), (25, 818025), (39, 524375), (65, 314625), (75, 272675), (125, 163605), (195, 104875), (325, 62925), (375, 54535), (625, 32721), (839, 24375), (975, 20975), (1625, 12585), (1875, 10907), (2517, 8125), (4195, 4875)]