80979020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139619}}^1$

素因数の和:139657

約数の個数: 24

約数和(自身を含む): 175921200

約数和(自身を除く): 94942180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 139619, 279238, 558476, 698095, 1396190, 2792380, 4048951, 8097902, 16195804, 20244755, 40489510, 80979020]

約数ペア:

[(1, 80979020), (2, 40489510), (4, 20244755), (5, 16195804), (10, 8097902), (20, 4048951), (29, 2792380), (58, 1396190), (116, 698095), (145, 558476), (290, 279238), (580, 139619)]