208097240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{400187}}^1$

素因数の和:400211

約数の個数: 32

約数和(自身を含む): 504236880

約数和(自身を除く): 296139640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 400187, 800374, 1600748, 2000935, 3201496, 4001870, 5202431, 8003740, 10404862, 16007480, 20809724, 26012155, 41619448, 52024310, 104048620, 208097240]

約数ペア:

[(1, 208097240), (2, 104048620), (4, 52024310), (5, 41619448), (8, 26012155), (10, 20809724), (13, 16007480), (20, 10404862), (26, 8003740), (40, 5202431), (52, 4001870), (65, 3201496), (104, 2000935), (130, 1600748), (260, 800374), (520, 400187)]