2017780120

素因数分解:

$2^3\times 5^1\times {\mathrm{50444503}}^1$

素因数の和:50444514

約数の個数: 16

約数和(自身を含む): 4540005360

約数和(自身を除く): 2522225240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 50444503, 100889006, 201778012, 252222515, 403556024, 504445030, 1008890060, 2017780120]

約数ペア:

[(1, 2017780120), (2, 1008890060), (4, 504445030), (5, 403556024), (8, 252222515), (10, 201778012), (20, 100889006), (40, 50444503)]