83858125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{10321}}^1$

素因数の和:10354

約数の個数: 20

約数和(自身を含む): 112860748

約数和(自身を除く): 29002623

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 8125, 10321, 51605, 134173, 258025, 670865, 1290125, 3354325, 6450625, 16771625, 83858125]

約数ペア:

[(1, 83858125), (5, 16771625), (13, 6450625), (25, 3354325), (65, 1290125), (125, 670865), (325, 258025), (625, 134173), (1625, 51605), (8125, 10321)]