206338420

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{20269}}^1$

素因数の和:20787

約数の個数: 24

約数和(自身を含む): 434183400

約数和(自身を除く): 227844980

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 10180, 20269, 40538, 81076, 101345, 202690, 405380, 10316921, 20633842, 41267684, 51584605, 103169210, 206338420]

約数ペア:

[(1, 206338420), (2, 103169210), (4, 51584605), (5, 41267684), (10, 20633842), (20, 10316921), (509, 405380), (1018, 202690), (2036, 101345), (2545, 81076), (5090, 40538), (10180, 20269)]