128936260

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{39551}}^1$

素因数の和:39723

約数の個数: 24

約数和(自身を含む): 272434176

約数和(自身を除く): 143497916

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 39551, 79102, 158204, 197755, 395510, 791020, 6446813, 12893626, 25787252, 32234065, 64468130, 128936260]

約数ペア:

[(1, 128936260), (2, 64468130), (4, 32234065), (5, 25787252), (10, 12893626), (20, 6446813), (163, 791020), (326, 395510), (652, 197755), (815, 158204), (1630, 79102), (3260, 39551)]