78455920

素因数分解:

$2^4\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1399}}^1$

素因数の和:2113

約数の個数: 40

約数和(自身を含む): 182800800

約数和(自身を除く): 104344880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 701, 1399, 1402, 2798, 2804, 3505, 5596, 5608, 6995, 7010, 11192, 11216, 13990, 14020, 22384, 27980, 28040, 55960, 56080, 111920, 980699, 1961398, 3922796, 4903495, 7845592, 9806990, 15691184, 19613980, 39227960, 78455920]

約数ペア:

[(1, 78455920), (2, 39227960), (4, 19613980), (5, 15691184), (8, 9806990), (10, 7845592), (16, 4903495), (20, 3922796), (40, 1961398), (80, 980699), (701, 111920), (1399, 56080), (1402, 55960), (2798, 28040), (2804, 27980), (3505, 22384), (5596, 14020), (5608, 13990), (6995, 11216), (7010, 11192)]