39995080

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1447}}^1$

素因数の和:2149

約数の個数: 32

約数和(自身を含む): 90181440

約数和(自身を除く): 50186360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 1447, 2764, 2894, 3455, 5528, 5788, 6910, 7235, 11576, 13820, 14470, 27640, 28940, 57880, 999877, 1999754, 3999508, 4999385, 7999016, 9998770, 19997540, 39995080]

約数ペア:

[(1, 39995080), (2, 19997540), (4, 9998770), (5, 7999016), (8, 4999385), (10, 3999508), (20, 1999754), (40, 999877), (691, 57880), (1382, 28940), (1447, 27640), (2764, 14470), (2894, 13820), (3455, 11576), (5528, 7235), (5788, 6910)]