40553780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28559}}^1$

素因数の和:28639

約数の個数: 24

約数和(自身を含む): 86365440

約数和(自身を除く): 45811660

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 28559, 57118, 114236, 142795, 285590, 571180, 2027689, 4055378, 8110756, 10138445, 20276890, 40553780]

約数ペア:

[(1, 40553780), (2, 20276890), (4, 10138445), (5, 8110756), (10, 4055378), (20, 2027689), (71, 571180), (142, 285590), (284, 142795), (355, 114236), (710, 57118), (1420, 28559)]