129295640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{36319}}^1$

素因数の和:36419

約数の個数: 32

約数和(自身を含む): 294192000

約数和(自身を除く): 164896360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 36319, 72638, 145276, 181595, 290552, 363190, 726380, 1452760, 3232391, 6464782, 12929564, 16161955, 25859128, 32323910, 64647820, 129295640]

約数ペア:

[(1, 129295640), (2, 64647820), (4, 32323910), (5, 25859128), (8, 16161955), (10, 12929564), (20, 6464782), (40, 3232391), (89, 1452760), (178, 726380), (356, 363190), (445, 290552), (712, 181595), (890, 145276), (1780, 72638), (3560, 36319)]