20188120

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{887}}^1$

素因数の和:1467

約数の個数: 32

約数和(自身を含む): 45554400

約数和(自身を除く): 25366280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 887, 1138, 1774, 2276, 2845, 3548, 4435, 4552, 5690, 7096, 8870, 11380, 17740, 22760, 35480, 504703, 1009406, 2018812, 2523515, 4037624, 5047030, 10094060, 20188120]

約数ペア:

[(1, 20188120), (2, 10094060), (4, 5047030), (5, 4037624), (8, 2523515), (10, 2018812), (20, 1009406), (40, 504703), (569, 35480), (887, 22760), (1138, 17740), (1774, 11380), (2276, 8870), (2845, 7096), (3548, 5690), (4435, 4552)]