81061360

素因数分解:

$2^4\times 5^1\times {\mathrm{1013267}}^1$

素因数の和:1013280

約数の個数: 20

約数和(自身を含む): 188467848

約数和(自身を除く): 107406488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1013267, 2026534, 4053068, 5066335, 8106136, 10132670, 16212272, 20265340, 40530680, 81061360]

約数ペア:

[(1, 81061360), (2, 40530680), (4, 20265340), (5, 16212272), (8, 10132670), (10, 8106136), (16, 5066335), (20, 4053068), (40, 2026534), (80, 1013267)]