20810450

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{7853}}^1$

素因数の和:7918

約数の個数: 24

約数和(自身を含む): 39442788

約数和(自身を除く): 18632338

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 265, 530, 1325, 2650, 7853, 15706, 39265, 78530, 196325, 392650, 416209, 832418, 2081045, 4162090, 10405225, 20810450]

約数ペア:

[(1, 20810450), (2, 10405225), (5, 4162090), (10, 2081045), (25, 832418), (50, 416209), (53, 392650), (106, 196325), (265, 78530), (530, 39265), (1325, 15706), (2650, 7853)]