678266620

素因数分解:

$2^2\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{28961}}^1$

素因数の和:30141

約数の個数: 24

約数和(自身を含む): 1425625488

約数和(自身を除く): 747358868

約数列:

[1, 2, 4, 5, 10, 20, 1171, 2342, 4684, 5855, 11710, 23420, 28961, 57922, 115844, 144805, 289610, 579220, 33913331, 67826662, 135653324, 169566655, 339133310, 678266620]

約数ペア:

[(1, 678266620), (2, 339133310), (4, 169566655), (5, 135653324), (10, 67826662), (20, 33913331), (1171, 579220), (2342, 289610), (4684, 144805), (5855, 115844), (11710, 57922), (23420, 28961)]