40020565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{11617}}^1$

素因数の和:11688

約数の個数: 16

約数和(自身を含む): 52699248

約数和(自身を除く): 12678683

約数列:

[1, 5, 13, 53, 65, 265, 689, 3445, 11617, 58085, 151021, 615701, 755105, 3078505, 8004113, 40020565]

約数ペア:

[(1, 40020565), (5, 8004113), (13, 3078505), (53, 755105), (65, 615701), (265, 151021), (689, 58085), (3445, 11617)]