71405020

素因数分解:

$2^2\times 5^1\times {\mathrm{1847}}^1\times {\mathrm{1933}}^1$

素因数の和:3789

約数の個数: 24

約数和(自身を含む): 150109344

約数和(自身を除く): 78704324

約数列:

[1, 2, 4, 5, 10, 20, 1847, 1933, 3694, 3866, 7388, 7732, 9235, 9665, 18470, 19330, 36940, 38660, 3570251, 7140502, 14281004, 17851255, 35702510, 71405020]

約数ペア:

[(1, 71405020), (2, 35702510), (4, 17851255), (5, 14281004), (10, 7140502), (20, 3570251), (1847, 38660), (1933, 36940), (3694, 19330), (3866, 18470), (7388, 9665), (7732, 9235)]