80204380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{36791}}^1$

素因数の和:36909

約数の個数: 24

約数和(自身を含む): 169979040

約数和(自身を除く): 89774660

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 36791, 73582, 147164, 183955, 367910, 735820, 4010219, 8020438, 16040876, 20051095, 40102190, 80204380]

約数ペア:

[(1, 80204380), (2, 40102190), (4, 20051095), (5, 16040876), (10, 8020438), (20, 4010219), (109, 735820), (218, 367910), (436, 183955), (545, 147164), (1090, 73582), (2180, 36791)]