78681640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67829}}^1$

素因数の和:67869

約数の個数: 32

約数和(自身を含む): 183141000

約数和(自身を除く): 104459360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 67829, 135658, 271316, 339145, 542632, 678290, 1356580, 1967041, 2713160, 3934082, 7868164, 9835205, 15736328, 19670410, 39340820, 78681640]

約数ペア:

[(1, 78681640), (2, 39340820), (4, 19670410), (5, 15736328), (8, 9835205), (10, 7868164), (20, 3934082), (29, 2713160), (40, 1967041), (58, 1356580), (116, 678290), (145, 542632), (232, 339145), (290, 271316), (580, 135658), (1160, 67829)]