27405625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{3373}}^1$

素因数の和:3406

約数の個数: 20

約数和(自身を含む): 36891316

約数和(自身を除く): 9485691

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 3373, 8125, 16865, 43849, 84325, 219245, 421625, 1096225, 2108125, 5481125, 27405625]

約数ペア:

[(1, 27405625), (5, 5481125), (13, 2108125), (25, 1096225), (65, 421625), (125, 219245), (325, 84325), (625, 43849), (1625, 16865), (3373, 8125)]