22709240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6379}}^1$

素因数の和:6479

約数の個数: 32

約数和(自身を含む): 51678000

約数和(自身を除く): 28968760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 6379, 12758, 25516, 31895, 51032, 63790, 127580, 255160, 567731, 1135462, 2270924, 2838655, 4541848, 5677310, 11354620, 22709240]

約数ペア:

[(1, 22709240), (2, 11354620), (4, 5677310), (5, 4541848), (8, 2838655), (10, 2270924), (20, 1135462), (40, 567731), (89, 255160), (178, 127580), (356, 63790), (445, 51032), (712, 31895), (890, 25516), (1780, 12758), (3560, 6379)]