278146220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1264301}}^1$

素因数の和:1264321

約数の個数: 24

約数和(自身を含む): 637208208

約数和(自身を除く): 359061988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1264301, 2528602, 5057204, 6321505, 12643010, 13907311, 25286020, 27814622, 55629244, 69536555, 139073110, 278146220]

約数ペア:

[(1, 278146220), (2, 139073110), (4, 69536555), (5, 55629244), (10, 27814622), (11, 25286020), (20, 13907311), (22, 12643010), (44, 6321505), (55, 5057204), (110, 2528602), (220, 1264301)]