28917820

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13513}}^1$

素因数の和:13629

約数の個数: 24

約数和(自身を含む): 61299504

約数和(自身を除く): 32381684

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 13513, 27026, 54052, 67565, 135130, 270260, 1445891, 2891782, 5783564, 7229455, 14458910, 28917820]

約数ペア:

[(1, 28917820), (2, 14458910), (4, 7229455), (5, 5783564), (10, 2891782), (20, 1445891), (107, 270260), (214, 135130), (428, 67565), (535, 54052), (1070, 27026), (2140, 13513)]