215110160

素因数分解:

$2^4\times 5^1\times {\mathrm{2688877}}^1$

素因数の和:2688890

約数の個数: 20

約数和(自身を含む): 500131308

約数和(自身を除く): 285021148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2688877, 5377754, 10755508, 13444385, 21511016, 26888770, 43022032, 53777540, 107555080, 215110160]

約数ペア:

[(1, 215110160), (2, 107555080), (4, 53777540), (5, 43022032), (8, 26888770), (10, 21511016), (16, 13444385), (20, 10755508), (40, 5377754), (80, 2688877)]