65544040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{719}}^1$

素因数の和:826

約数の個数: 64

約数和(自身を含む): 153964800

約数和(自身を除く): 88420760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 719, 860, 1060, 1438, 1720, 2120, 2279, 2876, 3595, 4558, 5752, 7190, 9116, 11395, 14380, 18232, 22790, 28760, 30917, 38107, 45580, 61834, 76214, 91160, 123668, 152428, 154585, 190535, 247336, 304856, 309170, 381070, 618340, 762140, 1236680, 1524280, 1638601, 3277202, 6554404, 8193005, 13108808, 16386010, 32772020, 65544040]

約数ペア:

[(1, 65544040), (2, 32772020), (4, 16386010), (5, 13108808), (8, 8193005), (10, 6554404), (20, 3277202), (40, 1638601), (43, 1524280), (53, 1236680), (86, 762140), (106, 618340), (172, 381070), (212, 309170), (215, 304856), (265, 247336), (344, 190535), (424, 154585), (430, 152428), (530, 123668), (719, 91160), (860, 76214), (1060, 61834), (1438, 45580), (1720, 38107), (2120, 30917), (2279, 28760), (2876, 22790), (3595, 18232), (4558, 14380), (5752, 11395), (7190, 9116)]