19450820

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3461}}^1$

素因数の和:3751

約数の個数: 24

約数和(自身を含む): 41003928

約数和(自身を除く): 21553108

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 3461, 5620, 6922, 13844, 17305, 34610, 69220, 972541, 1945082, 3890164, 4862705, 9725410, 19450820]

約数ペア:

[(1, 19450820), (2, 9725410), (4, 4862705), (5, 3890164), (10, 1945082), (20, 972541), (281, 69220), (562, 34610), (1124, 17305), (1405, 13844), (2810, 6922), (3461, 5620)]