2571620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1811}}^1$

素因数の和:1891

約数の個数: 24

約数和(自身を含む): 5479488

約数和(自身を除く): 2907868

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1811, 3622, 7244, 9055, 18110, 36220, 128581, 257162, 514324, 642905, 1285810, 2571620]

約数ペア:

[(1, 2571620), (2, 1285810), (4, 642905), (5, 514324), (10, 257162), (20, 128581), (71, 36220), (142, 18110), (284, 9055), (355, 7244), (710, 3622), (1420, 1811)]