71998460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{87803}}^1$

素因数の和:87853

約数の個数: 24

約数和(自身を含む): 154886256

約数和(自身を除く): 82887796

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 87803, 175606, 351212, 439015, 878030, 1756060, 3599923, 7199846, 14399692, 17999615, 35999230, 71998460]

約数ペア:

[(1, 71998460), (2, 35999230), (4, 17999615), (5, 14399692), (10, 7199846), (20, 3599923), (41, 1756060), (82, 878030), (164, 439015), (205, 351212), (410, 175606), (820, 87803)]