217616975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{1901}}^1$

素因数の和:2171

約数の個数: 24

約数和(自身を含む): 285376080

約数和(自身を除く): 67759105

約数列:

[1, 5, 19, 25, 95, 241, 475, 1205, 1901, 4579, 6025, 9505, 22895, 36119, 47525, 114475, 180595, 458141, 902975, 2290705, 8704679, 11453525, 43523395, 217616975]

約数ペア:

[(1, 217616975), (5, 43523395), (19, 11453525), (25, 8704679), (95, 2290705), (241, 902975), (475, 458141), (1205, 180595), (1901, 114475), (4579, 47525), (6025, 36119), (9505, 22895)]