128912320

素因数分解:

$2^6\times 5^1\times {\mathrm{402851}}^1$

素因数の和:402868

約数の個数: 28

約数和(自身を含む): 306973224

約数和(自身を除く): 178060904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 402851, 805702, 1611404, 2014255, 3222808, 4028510, 6445616, 8057020, 12891232, 16114040, 25782464, 32228080, 64456160, 128912320]

約数ペア:

[(1, 128912320), (2, 64456160), (4, 32228080), (5, 25782464), (8, 16114040), (10, 12891232), (16, 8057020), (20, 6445616), (32, 4028510), (40, 3222808), (64, 2014255), (80, 1611404), (160, 805702), (320, 402851)]