71208820

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{5503}}^1$

素因数の和:6159

約数の個数: 24

約数和(自身を含む): 149796864

約数和(自身を除く): 78588044

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 5503, 6470, 11006, 12940, 22012, 27515, 55030, 110060, 3560441, 7120882, 14241764, 17802205, 35604410, 71208820]

約数ペア:

[(1, 71208820), (2, 35604410), (4, 17802205), (5, 14241764), (10, 7120882), (20, 3560441), (647, 110060), (1294, 55030), (2588, 27515), (3235, 22012), (5503, 12940), (6470, 11006)]