78505360

素因数分解:

$2^4\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1213}}^1$

素因数の和:2035

約数の個数: 40

約数和(自身を含む): 182901240

約数和(自身を除く): 104395880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809, 1213, 1618, 2426, 3236, 4045, 4852, 6065, 6472, 8090, 9704, 12130, 12944, 16180, 19408, 24260, 32360, 48520, 64720, 97040, 981317, 1962634, 3925268, 4906585, 7850536, 9813170, 15701072, 19626340, 39252680, 78505360]

約数ペア:

[(1, 78505360), (2, 39252680), (4, 19626340), (5, 15701072), (8, 9813170), (10, 7850536), (16, 4906585), (20, 3925268), (40, 1962634), (80, 981317), (809, 97040), (1213, 64720), (1618, 48520), (2426, 32360), (3236, 24260), (4045, 19408), (4852, 16180), (6065, 12944), (6472, 12130), (8090, 9704)]