28874780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131249}}^1$

素因数の和:131269

約数の個数: 24

約数和(自身を含む): 66150000

約数和(自身を除く): 37275220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 131249, 262498, 524996, 656245, 1312490, 1443739, 2624980, 2887478, 5774956, 7218695, 14437390, 28874780]

約数ペア:

[(1, 28874780), (2, 14437390), (4, 7218695), (5, 5774956), (10, 2887478), (11, 2624980), (20, 1443739), (22, 1312490), (44, 656245), (55, 524996), (110, 262498), (220, 131249)]