90144440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{31741}}^1$

素因数の和:31823

約数の個数: 32

約数和(自身を含む): 205688160

約数和(自身を除く): 115543720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 31741, 63482, 126964, 158705, 253928, 317410, 634820, 1269640, 2253611, 4507222, 9014444, 11268055, 18028888, 22536110, 45072220, 90144440]

約数ペア:

[(1, 90144440), (2, 45072220), (4, 22536110), (5, 18028888), (8, 11268055), (10, 9014444), (20, 4507222), (40, 2253611), (71, 1269640), (142, 634820), (284, 317410), (355, 253928), (568, 158705), (710, 126964), (1420, 63482), (2840, 31741)]