12915696625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{256391}}^1$

素因数の和:256450

約数の個数: 32

約数和(自身を含む): 17918724096

約数和(自身を除く): 5003027471

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 325, 403, 775, 1625, 2015, 3875, 10075, 50375, 256391, 1281955, 3333083, 6409775, 7948121, 16665415, 32048875, 39740605, 83327075, 103325573, 198703025, 416635375, 516627865, 993515125, 2583139325, 12915696625]

約数ペア:

[(1, 12915696625), (5, 2583139325), (13, 993515125), (25, 516627865), (31, 416635375), (65, 198703025), (125, 103325573), (155, 83327075), (325, 39740605), (403, 32048875), (775, 16665415), (1625, 7948121), (2015, 6409775), (3875, 3333083), (10075, 1281955), (50375, 256391)]