99619375

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{8389}}^1$

素因数の和:8428

約数の個数: 20

約数和(自身を含む): 131051800

約数和(自身を除く): 31432425

約数列:

[1, 5, 19, 25, 95, 125, 475, 625, 2375, 8389, 11875, 41945, 159391, 209725, 796955, 1048625, 3984775, 5243125, 19923875, 99619375]

約数ペア:

[(1, 99619375), (5, 19923875), (19, 5243125), (25, 3984775), (95, 1048625), (125, 796955), (475, 209725), (625, 159391), (2375, 41945), (8389, 11875)]