20010628

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3581}}^1$

素因数の和:3723

約数の個数: 24

約数和(自身を含む): 38513664

約数和(自身を除く): 18503036

約数列:

[1, 2, 4, 11, 22, 44, 127, 254, 508, 1397, 2794, 3581, 5588, 7162, 14324, 39391, 78782, 157564, 454787, 909574, 1819148, 5002657, 10005314, 20010628]

約数ペア:

[(1, 20010628), (2, 10005314), (4, 5002657), (11, 1819148), (22, 909574), (44, 454787), (127, 157564), (254, 78782), (508, 39391), (1397, 14324), (2794, 7162), (3581, 5588)]