128939480

素因数分解:

$2^3\times 5^1\times {\mathrm{853}}^1\times {\mathrm{3779}}^1$

素因数の和:4643

約数の個数: 32

約数和(自身を含む): 290530800

約数和(自身を除く): 161591320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 853, 1706, 3412, 3779, 4265, 6824, 7558, 8530, 15116, 17060, 18895, 30232, 34120, 37790, 75580, 151160, 3223487, 6446974, 12893948, 16117435, 25787896, 32234870, 64469740, 128939480]

約数ペア:

[(1, 128939480), (2, 64469740), (4, 32234870), (5, 25787896), (8, 16117435), (10, 12893948), (20, 6446974), (40, 3223487), (853, 151160), (1706, 75580), (3412, 37790), (3779, 34120), (4265, 30232), (6824, 18895), (7558, 17060), (8530, 15116)]