28136180

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{10739}}^1$

素因数の和:10879

約数の個数: 24

約数和(自身を含む): 59542560

約数和(自身を除く): 31406380

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 10739, 21478, 42956, 53695, 107390, 214780, 1406809, 2813618, 5627236, 7034045, 14068090, 28136180]

約数ペア:

[(1, 28136180), (2, 14068090), (4, 7034045), (5, 5627236), (10, 2813618), (20, 1406809), (131, 214780), (262, 107390), (524, 53695), (655, 42956), (1310, 21478), (2620, 10739)]