214837025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{50849}}^1$

素因数の和:50885

約数の個数: 18

約数和(自身を含む): 288472050

約数和(自身を除く): 73635025

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 50849, 254245, 661037, 1271225, 3305185, 8593481, 16525925, 42967405, 214837025]

約数ペア:

[(1, 214837025), (5, 42967405), (13, 16525925), (25, 8593481), (65, 3305185), (169, 1271225), (325, 661037), (845, 254245), (4225, 50849)]