864416240

素因数分解:

$2^4\times 5^1\times {\mathrm{10805203}}^1$

素因数の和:10805216

約数の個数: 20

約数和(自身を含む): 2009767944

約数和(自身を除く): 1145351704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10805203, 21610406, 43220812, 54026015, 86441624, 108052030, 172883248, 216104060, 432208120, 864416240]

約数ペア:

[(1, 864416240), (2, 432208120), (4, 216104060), (5, 172883248), (8, 108052030), (10, 86441624), (16, 54026015), (20, 43220812), (40, 21610406), (80, 10805203)]