28237220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128351}}^1$

素因数の和:128371

約数の個数: 24

約数和(自身を含む): 64689408

約数和(自身を除く): 36452188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128351, 256702, 513404, 641755, 1283510, 1411861, 2567020, 2823722, 5647444, 7059305, 14118610, 28237220]

約数ペア:

[(1, 28237220), (2, 14118610), (4, 7059305), (5, 5647444), (10, 2823722), (11, 2567020), (20, 1411861), (22, 1283510), (44, 641755), (55, 513404), (110, 256702), (220, 128351)]