79998040

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19417}}^1$

素因数の和:19531

約数の個数: 32

約数和(自身を含む): 181752480

約数和(自身を除く): 101754440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 19417, 38834, 77668, 97085, 155336, 194170, 388340, 776680, 1999951, 3999902, 7999804, 9999755, 15999608, 19999510, 39999020, 79998040]

約数ペア:

[(1, 79998040), (2, 39999020), (4, 19999510), (5, 15999608), (8, 9999755), (10, 7999804), (20, 3999902), (40, 1999951), (103, 776680), (206, 388340), (412, 194170), (515, 155336), (824, 97085), (1030, 77668), (2060, 38834), (4120, 19417)]