27551875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{3391}}^1$

素因数の和:3424

約数の個数: 20

約数和(自身を含む): 37088128

約数和(自身を除く): 9536253

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 3391, 8125, 16955, 44083, 84775, 220415, 423875, 1102075, 2119375, 5510375, 27551875]

約数ペア:

[(1, 27551875), (5, 5510375), (13, 2119375), (25, 1102075), (65, 423875), (125, 220415), (325, 84775), (625, 44083), (1625, 16955), (3391, 8125)]