20952760

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3469}}^1$

素因数の和:3631

約数の個数: 32

約数和(自身を含む): 47469600

約数和(自身を除く): 26516840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 3469, 6040, 6938, 13876, 17345, 27752, 34690, 69380, 138760, 523819, 1047638, 2095276, 2619095, 4190552, 5238190, 10476380, 20952760]

約数ペア:

[(1, 20952760), (2, 10476380), (4, 5238190), (5, 4190552), (8, 2619095), (10, 2095276), (20, 1047638), (40, 523819), (151, 138760), (302, 69380), (604, 34690), (755, 27752), (1208, 17345), (1510, 13876), (3020, 6938), (3469, 6040)]