2019980540

素因数分解:

$2^2\times 5^1\times {\mathrm{2549}}^1\times {\mathrm{39623}}^1$

素因数の和:42181

約数の個数: 24

約数和(自身を含む): 4243730400

約数和(自身を除く): 2223749860

約数列:

[1, 2, 4, 5, 10, 20, 2549, 5098, 10196, 12745, 25490, 39623, 50980, 79246, 158492, 198115, 396230, 792460, 100999027, 201998054, 403996108, 504995135, 1009990270, 2019980540]

約数ペア:

[(1, 2019980540), (2, 1009990270), (4, 504995135), (5, 403996108), (10, 201998054), (20, 100999027), (2549, 792460), (5098, 396230), (10196, 198115), (12745, 158492), (25490, 79246), (39623, 50980)]