219906380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{578701}}^1$

素因数の和:578729

約数の個数: 24

約数和(自身を含む): 486109680

約数和(自身を除く): 266203300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 578701, 1157402, 2314804, 2893505, 5787010, 10995319, 11574020, 21990638, 43981276, 54976595, 109953190, 219906380]

約数ペア:

[(1, 219906380), (2, 109953190), (4, 54976595), (5, 43981276), (10, 21990638), (19, 11574020), (20, 10995319), (38, 5787010), (76, 2893505), (95, 2314804), (190, 1157402), (380, 578701)]