78971920

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2027}}^1$

素因数の和:2527

約数の個数: 40

約数和(自身を含む): 184077504

約数和(自身を除く): 105105584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1948, 2027, 2435, 3896, 4054, 4870, 7792, 8108, 9740, 10135, 16216, 19480, 20270, 32432, 38960, 40540, 81080, 162160, 987149, 1974298, 3948596, 4935745, 7897192, 9871490, 15794384, 19742980, 39485960, 78971920]

約数ペア:

[(1, 78971920), (2, 39485960), (4, 19742980), (5, 15794384), (8, 9871490), (10, 7897192), (16, 4935745), (20, 3948596), (40, 1974298), (80, 987149), (487, 162160), (974, 81080), (1948, 40540), (2027, 38960), (2435, 32432), (3896, 20270), (4054, 19480), (4870, 16216), (7792, 10135), (8108, 9740)]