2040604820

素因数分解:

$2^2\times 5^1\times {\mathrm{25463}}^1\times {\mathrm{4007}}^1$

素因数の和:29479

約数の個数: 24

約数和(自身を含む): 4286507904

約数和(自身を除く): 2245903084

約数列:

[1, 2, 4, 5, 10, 20, 4007, 8014, 16028, 20035, 25463, 40070, 50926, 80140, 101852, 127315, 254630, 509260, 102030241, 204060482, 408120964, 510151205, 1020302410, 2040604820]

約数ペア:

[(1, 2040604820), (2, 1020302410), (4, 510151205), (5, 408120964), (10, 204060482), (20, 102030241), (4007, 509260), (8014, 254630), (16028, 127315), (20035, 101852), (25463, 80140), (40070, 50926)]