40396240

素因数分解:

$2^4\times 5^1\times {\mathrm{504953}}^1$

素因数の和:504966

約数の個数: 20

約数和(自身を含む): 93921444

約数和(自身を除く): 53525204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 504953, 1009906, 2019812, 2524765, 4039624, 5049530, 8079248, 10099060, 20198120, 40396240]

約数ペア:

[(1, 40396240), (2, 20198120), (4, 10099060), (5, 8079248), (8, 5049530), (10, 4039624), (16, 2524765), (20, 2019812), (40, 1009906), (80, 504953)]