2021860220

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{402761}}^1$

素因数の和:403021

約数の個数: 24

約数和(自身を含む): 4262833008

約数和(自身を除く): 2240972788

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 402761, 805522, 1611044, 2013805, 4027610, 8055220, 101093011, 202186022, 404372044, 505465055, 1010930110, 2021860220]

約数ペア:

[(1, 2021860220), (2, 1010930110), (4, 505465055), (5, 404372044), (10, 202186022), (20, 101093011), (251, 8055220), (502, 4027610), (1004, 2013805), (1255, 1611044), (2510, 805522), (5020, 402761)]