19754620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24091}}^1$

素因数の和:24141

約数の個数: 24

約数和(自身を含む): 42498288

約数和(自身を除く): 22743668

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24091, 48182, 96364, 120455, 240910, 481820, 987731, 1975462, 3950924, 4938655, 9877310, 19754620]

約数ペア:

[(1, 19754620), (2, 9877310), (4, 4938655), (5, 3950924), (10, 1975462), (20, 987731), (41, 481820), (82, 240910), (164, 120455), (205, 96364), (410, 48182), (820, 24091)]