30640825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 40309920

約数和(自身を除く): 9669095

約数列:

[1, 5, 19, 25, 95, 251, 257, 475, 1255, 1285, 4769, 4883, 6275, 6425, 23845, 24415, 64507, 119225, 122075, 322535, 1225633, 1612675, 6128165, 30640825]

約数ペア:

[(1, 30640825), (5, 6128165), (19, 1612675), (25, 1225633), (95, 322535), (251, 122075), (257, 119225), (475, 64507), (1255, 24415), (1285, 23845), (4769, 6425), (4883, 6275)]