20396325

素因数分解:

$3^1\times 5^2\times {\mathrm{151}}^1\times {\mathrm{1801}}^1$

素因数の和:1965

約数の個数: 24

約数和(自身を含む): 33964096

約数和(自身を除く): 13567771

約数列:

[1, 3, 5, 15, 25, 75, 151, 453, 755, 1801, 2265, 3775, 5403, 9005, 11325, 27015, 45025, 135075, 271951, 815853, 1359755, 4079265, 6798775, 20396325]

約数ペア:

[(1, 20396325), (3, 6798775), (5, 4079265), (15, 1359755), (25, 815853), (75, 271951), (151, 135075), (453, 45025), (755, 27015), (1801, 11325), (2265, 9005), (3775, 5403)]