28026940

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{4987}}^1$

素因数の和:5277

約数の個数: 24

約数和(自身を含む): 59077872

約数和(自身を除く): 31050932

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 4987, 5620, 9974, 19948, 24935, 49870, 99740, 1401347, 2802694, 5605388, 7006735, 14013470, 28026940]

約数ペア:

[(1, 28026940), (2, 14013470), (4, 7006735), (5, 5605388), (10, 2802694), (20, 1401347), (281, 99740), (562, 49870), (1124, 24935), (1405, 19948), (2810, 9974), (4987, 5620)]