20198120

素因数分解:

$2^3\times 5^1\times {\mathrm{504953}}^1$

素因数の和:504964

約数の個数: 16

約数和(自身を含む): 45445860

約数和(自身を除く): 25247740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504953, 1009906, 2019812, 2524765, 4039624, 5049530, 10099060, 20198120]

約数ペア:

[(1, 20198120), (2, 10099060), (4, 5049530), (5, 4039624), (8, 2524765), (10, 2019812), (20, 1009906), (40, 504953)]