20501240

素因数分解:

$2^3\times 5^1\times {\mathrm{512531}}^1$

素因数の和:512542

約数の個数: 16

約数和(自身を含む): 46127880

約数和(自身を除く): 25626640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512531, 1025062, 2050124, 2562655, 4100248, 5125310, 10250620, 20501240]

約数ペア:

[(1, 20501240), (2, 10250620), (4, 5125310), (5, 4100248), (8, 2562655), (10, 2050124), (20, 1025062), (40, 512531)]