71963620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{40429}}^1$

素因数の和:40527

約数の個数: 24

約数和(自身を含む): 152825400

約数和(自身を除く): 80861780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 40429, 80858, 161716, 202145, 404290, 808580, 3598181, 7196362, 14392724, 17990905, 35981810, 71963620]

約数ペア:

[(1, 71963620), (2, 35981810), (4, 17990905), (5, 14392724), (10, 7196362), (20, 3598181), (89, 808580), (178, 404290), (356, 202145), (445, 161716), (890, 80858), (1780, 40429)]