20308735

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{631}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 25163712

約数和(自身を除く): 4854977

約数列:

[1, 5, 41, 157, 205, 631, 785, 3155, 6437, 25871, 32185, 99067, 129355, 495335, 4061747, 20308735]

約数ペア:

[(1, 20308735), (5, 4061747), (41, 495335), (157, 129355), (205, 99067), (631, 32185), (785, 25871), (3155, 6437)]