28874418620

素因数分解:

$2^2\times 5^1\times {\mathrm{12911}}^1\times {\mathrm{111821}}^1$

素因数の和:124741

約数の個数: 24

約数和(自身を含む): 60641517888

約数和(自身を除く): 31767099268

約数列:

[1, 2, 4, 5, 10, 20, 12911, 25822, 51644, 64555, 111821, 129110, 223642, 258220, 447284, 559105, 1118210, 2236420, 1443720931, 2887441862, 5774883724, 7218604655, 14437209310, 28874418620]

約数ペア:

[(1, 28874418620), (2, 14437209310), (4, 7218604655), (5, 5774883724), (10, 2887441862), (20, 1443720931), (12911, 2236420), (25822, 1118210), (51644, 559105), (64555, 447284), (111821, 258220), (129110, 223642)]