81017020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{578693}}^1$

素因数の和:578709

約数の個数: 24

約数和(自身を含む): 194441184

約数和(自身を除く): 113424164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 578693, 1157386, 2314772, 2893465, 4050851, 5786930, 8101702, 11573860, 16203404, 20254255, 40508510, 81017020]

約数ペア:

[(1, 81017020), (2, 40508510), (4, 20254255), (5, 16203404), (7, 11573860), (10, 8101702), (14, 5786930), (20, 4050851), (28, 2893465), (35, 2314772), (70, 1157386), (140, 578693)]