2100050780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1478909}}^1$

素因数の和:1478989

約数の個数: 24

約数和(自身を含む): 4472223840

約数和(自身を除く): 2372173060

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1478909, 2957818, 5915636, 7394545, 14789090, 29578180, 105002539, 210005078, 420010156, 525012695, 1050025390, 2100050780]

約数ペア:

[(1, 2100050780), (2, 1050025390), (4, 525012695), (5, 420010156), (10, 210005078), (20, 105002539), (71, 29578180), (142, 14789090), (284, 7394545), (355, 5915636), (710, 2957818), (1420, 1478909)]