291229820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2080213}}^1$

素因数の和:2080229

約数の個数: 24

約数和(自身を含む): 698951904

約数和(自身を除く): 407722084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2080213, 4160426, 8320852, 10401065, 14561491, 20802130, 29122982, 41604260, 58245964, 72807455, 145614910, 291229820]

約数ペア:

[(1, 291229820), (2, 145614910), (4, 72807455), (5, 58245964), (7, 41604260), (10, 29122982), (14, 20802130), (20, 14561491), (28, 10401065), (35, 8320852), (70, 4160426), (140, 2080213)]