89380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 194040

約数和(自身を除く): 104660

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 410, 436, 545, 820, 1090, 2180, 4469, 8938, 17876, 22345, 44690, 89380]

約数ペア:

[(1, 89380), (2, 44690), (4, 22345), (5, 17876), (10, 8938), (20, 4469), (41, 2180), (82, 1090), (109, 820), (164, 545), (205, 436), (218, 410)]