2019653620

素因数分解:

$2^2\times 5^1\times {\mathrm{7901}}^1\times {\mathrm{12781}}^1$

素因数の和:20691

約数の個数: 24

約数和(自身を含む): 4242141288

約数和(自身を除く): 2222487668

約数列:

[1, 2, 4, 5, 10, 20, 7901, 12781, 15802, 25562, 31604, 39505, 51124, 63905, 79010, 127810, 158020, 255620, 100982681, 201965362, 403930724, 504913405, 1009826810, 2019653620]

約数ペア:

[(1, 2019653620), (2, 1009826810), (4, 504913405), (5, 403930724), (10, 201965362), (20, 100982681), (7901, 255620), (12781, 158020), (15802, 127810), (25562, 79010), (31604, 63905), (39505, 51124)]