71221390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{245591}}^1$

素因数の和:245627

約数の個数: 16

約数和(自身を含む): 132619680

約数和(自身を除く): 61398290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 245591, 491182, 1227955, 2455910, 7122139, 14244278, 35610695, 71221390]

約数ペア:

[(1, 71221390), (2, 35610695), (5, 14244278), (10, 7122139), (29, 2455910), (58, 1227955), (145, 491182), (290, 245591)]