19799425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 26243360

約数和(自身を除く): 6443935

約数列:

[1, 5, 19, 25, 73, 95, 365, 475, 571, 1387, 1825, 2855, 6935, 10849, 14275, 34675, 41683, 54245, 208415, 271225, 791977, 1042075, 3959885, 19799425]

約数ペア:

[(1, 19799425), (5, 3959885), (19, 1042075), (25, 791977), (73, 271225), (95, 208415), (365, 54245), (475, 41683), (571, 34675), (1387, 14275), (1825, 10849), (2855, 6935)]