155534420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{39079}}^1$

素因数の和:39287

約数の個数: 24

約数和(自身を含む): 328272000

約数和(自身を除く): 172737580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 39079, 78158, 156316, 195395, 390790, 781580, 7776721, 15553442, 31106884, 38883605, 77767210, 155534420]

約数ペア:

[(1, 155534420), (2, 77767210), (4, 38883605), (5, 31106884), (10, 15553442), (20, 7776721), (199, 781580), (398, 390790), (796, 195395), (995, 156316), (1990, 78158), (3980, 39079)]