16225625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2030

約数の個数: 20

約数和(自身を含む): 21846132

約数和(自身を除く): 5620507

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 1997, 8125, 9985, 25961, 49925, 129805, 249625, 649025, 1248125, 3245125, 16225625]

約数ペア:

[(1, 16225625), (5, 3245125), (13, 1248125), (25, 649025), (65, 249625), (125, 129805), (325, 49925), (625, 25961), (1625, 9985), (1997, 8125)]