1279260020

素因数分解:

$2^2\times 5^1\times {\mathrm{3083}}^1\times {\mathrm{20747}}^1$

素因数の和:23839

約数の個数: 24

約数和(自身を含む): 2687446944

約数和(自身を除く): 1408186924

約数列:

[1, 2, 4, 5, 10, 20, 3083, 6166, 12332, 15415, 20747, 30830, 41494, 61660, 82988, 103735, 207470, 414940, 63963001, 127926002, 255852004, 319815005, 639630010, 1279260020]

約数ペア:

[(1, 1279260020), (2, 639630010), (4, 319815005), (5, 255852004), (10, 127926002), (20, 63963001), (3083, 414940), (6166, 207470), (12332, 103735), (15415, 82988), (20747, 61660), (30830, 41494)]