81617620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{582983}}^1$

素因数の和:582999

約数の個数: 24

約数和(自身を含む): 195882624

約数和(自身を除く): 114265004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 582983, 1165966, 2331932, 2914915, 4080881, 5829830, 8161762, 11659660, 16323524, 20404405, 40808810, 81617620]

約数ペア:

[(1, 81617620), (2, 40808810), (4, 20404405), (5, 16323524), (7, 11659660), (10, 8161762), (14, 5829830), (20, 4080881), (28, 2914915), (35, 2331932), (70, 1165966), (140, 582983)]