20915800

素因数分解:

$2^3\times 5^2\times {\mathrm{104579}}^1$

素因数の和:104595

約数の個数: 24

約数和(自身を含む): 48629700

約数和(自身を除く): 27713900

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 104579, 209158, 418316, 522895, 836632, 1045790, 2091580, 2614475, 4183160, 5228950, 10457900, 20915800]

約数ペア:

[(1, 20915800), (2, 10457900), (4, 5228950), (5, 4183160), (8, 2614475), (10, 2091580), (20, 1045790), (25, 836632), (40, 522895), (50, 418316), (100, 209158), (200, 104579)]