18215380

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3463}}^1$

素因数の和:3735

約数の個数: 24

約数和(自身を含む): 38408832

約数和(自身を除く): 20193452

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 3463, 5260, 6926, 13852, 17315, 34630, 69260, 910769, 1821538, 3643076, 4553845, 9107690, 18215380]

約数ペア:

[(1, 18215380), (2, 9107690), (4, 4553845), (5, 3643076), (10, 1821538), (20, 910769), (263, 69260), (526, 34630), (1052, 17315), (1315, 13852), (2630, 6926), (3463, 5260)]