18450625

素因数分解:

$5^4\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:630

約数の個数: 20

約数和(自身を含む): 23533092

約数和(自身を除く): 5082467

約数列:

[1, 5, 25, 53, 125, 265, 557, 625, 1325, 2785, 6625, 13925, 29521, 33125, 69625, 147605, 348125, 738025, 3690125, 18450625]

約数ペア:

[(1, 18450625), (5, 3690125), (25, 738025), (53, 348125), (125, 147605), (265, 69625), (557, 33125), (625, 29521), (1325, 13925), (2785, 6625)]