19501360

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5669}}^1$

素因数の和:5725

約数の個数: 40

約数和(自身を含む): 46403280

約数和(自身を除く): 26901920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5669, 11338, 22676, 28345, 45352, 56690, 90704, 113380, 226760, 243767, 453520, 487534, 975068, 1218835, 1950136, 2437670, 3900272, 4875340, 9750680, 19501360]

約数ペア:

[(1, 19501360), (2, 9750680), (4, 4875340), (5, 3900272), (8, 2437670), (10, 1950136), (16, 1218835), (20, 975068), (40, 487534), (43, 453520), (80, 243767), (86, 226760), (172, 113380), (215, 90704), (344, 56690), (430, 45352), (688, 28345), (860, 22676), (1720, 11338), (3440, 5669)]