19427540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{379}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 25388140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 233, 379, 466, 758, 932, 1165, 1516, 1895, 2330, 2563, 3790, 4169, 4660, 5126, 7580, 8338, 10252, 12815, 16676, 20845, 25630, 41690, 51260, 83380, 88307, 176614, 353228, 441535, 883070, 971377, 1766140, 1942754, 3885508, 4856885, 9713770, 19427540]

約数ペア:

[(1, 19427540), (2, 9713770), (4, 4856885), (5, 3885508), (10, 1942754), (11, 1766140), (20, 971377), (22, 883070), (44, 441535), (55, 353228), (110, 176614), (220, 88307), (233, 83380), (379, 51260), (466, 41690), (758, 25630), (932, 20845), (1165, 16676), (1516, 12815), (1895, 10252), (2330, 8338), (2563, 7580), (3790, 5126), (4169, 4660)]