71001880

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3407}}^1$

素因数の和:3939

約数の個数: 32

約数和(自身を含む): 160107840

約数和(自身を除く): 89105960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 3407, 4168, 5210, 6814, 10420, 13628, 17035, 20840, 27256, 34070, 68140, 136280, 1775047, 3550094, 7100188, 8875235, 14200376, 17750470, 35500940, 71001880]

約数ペア:

[(1, 71001880), (2, 35500940), (4, 17750470), (5, 14200376), (8, 8875235), (10, 7100188), (20, 3550094), (40, 1775047), (521, 136280), (1042, 68140), (2084, 34070), (2605, 27256), (3407, 20840), (4168, 17035), (5210, 13628), (6814, 10420)]