18308875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{593}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 25945920

約数和(自身を除く): 7637045

約数列:

[1, 5, 13, 19, 25, 65, 95, 125, 247, 325, 475, 593, 1235, 1625, 2375, 2965, 6175, 7709, 11267, 14825, 30875, 38545, 56335, 74125, 146471, 192725, 281675, 732355, 963625, 1408375, 3661775, 18308875]

約数ペア:

[(1, 18308875), (5, 3661775), (13, 1408375), (19, 963625), (25, 732355), (65, 281675), (95, 192725), (125, 146471), (247, 74125), (325, 56335), (475, 38545), (593, 30875), (1235, 14825), (1625, 11267), (2375, 7709), (2965, 6175)]