140870720

素因数分解:

$2^6\times 5^1\times {\mathrm{440221}}^1$

素因数の和:440238

約数の個数: 28

約数和(自身を含む): 335449164

約数和(自身を除く): 194578444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 440221, 880442, 1760884, 2201105, 3521768, 4402210, 7043536, 8804420, 14087072, 17608840, 28174144, 35217680, 70435360, 140870720]

約数ペア:

[(1, 140870720), (2, 70435360), (4, 35217680), (5, 28174144), (8, 17608840), (10, 14087072), (16, 8804420), (20, 7043536), (32, 4402210), (40, 3521768), (64, 2201105), (80, 1760884), (160, 880442), (320, 440221)]