51905380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{18671}}^1$

素因数の和:18819

約数の個数: 24

約数和(自身を含む): 109791360

約数和(自身を除く): 57885980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 18671, 37342, 74684, 93355, 186710, 373420, 2595269, 5190538, 10381076, 12976345, 25952690, 51905380]

約数ペア:

[(1, 51905380), (2, 25952690), (4, 12976345), (5, 10381076), (10, 5190538), (20, 2595269), (139, 373420), (278, 186710), (556, 93355), (695, 74684), (1390, 37342), (2780, 18671)]