19665760

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6469}}^1$

素因数の和:6503

約数の個数: 48

約数和(自身を含む): 48913200

約数和(自身を除く): 29247440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6469, 12938, 25876, 32345, 51752, 64690, 103504, 122911, 129380, 207008, 245822, 258760, 491644, 517520, 614555, 983288, 1035040, 1229110, 1966576, 2458220, 3933152, 4916440, 9832880, 19665760]

約数ペア:

[(1, 19665760), (2, 9832880), (4, 4916440), (5, 3933152), (8, 2458220), (10, 1966576), (16, 1229110), (19, 1035040), (20, 983288), (32, 614555), (38, 517520), (40, 491644), (76, 258760), (80, 245822), (95, 207008), (152, 129380), (160, 122911), (190, 103504), (304, 64690), (380, 51752), (608, 32345), (760, 25876), (1520, 12938), (3040, 6469)]