80161580

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{12109}}^1$

素因数の和:12449

約数の個数: 24

約数和(自身を含む): 168861840

約数和(自身を除く): 88700260

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 6620, 12109, 24218, 48436, 60545, 121090, 242180, 4008079, 8016158, 16032316, 20040395, 40080790, 80161580]

約数ペア:

[(1, 80161580), (2, 40080790), (4, 20040395), (5, 16032316), (10, 8016158), (20, 4008079), (331, 242180), (662, 121090), (1324, 60545), (1655, 48436), (3310, 24218), (6620, 12109)]