82890125

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{21391}}^1$

素因数の和:21437

約数の個数: 16

約数和(自身を含む): 106788864

約数和(自身を除く): 23898739

約数列:

[1, 5, 25, 31, 125, 155, 775, 3875, 21391, 106955, 534775, 663121, 2673875, 3315605, 16578025, 82890125]

約数ペア:

[(1, 82890125), (5, 16578025), (25, 3315605), (31, 2673875), (125, 663121), (155, 534775), (775, 106955), (3875, 21391)]