180871640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{719}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 430272000

約数和(自身を除く): 249400360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 331, 380, 662, 719, 760, 1324, 1438, 1655, 2648, 2876, 3310, 3595, 5752, 6289, 6620, 7190, 12578, 13240, 13661, 14380, 25156, 27322, 28760, 31445, 50312, 54644, 62890, 68305, 109288, 125780, 136610, 237989, 251560, 273220, 475978, 546440, 951956, 1189945, 1903912, 2379890, 4521791, 4759780, 9043582, 9519560, 18087164, 22608955, 36174328, 45217910, 90435820, 180871640]

約数ペア:

[(1, 180871640), (2, 90435820), (4, 45217910), (5, 36174328), (8, 22608955), (10, 18087164), (19, 9519560), (20, 9043582), (38, 4759780), (40, 4521791), (76, 2379890), (95, 1903912), (152, 1189945), (190, 951956), (331, 546440), (380, 475978), (662, 273220), (719, 251560), (760, 237989), (1324, 136610), (1438, 125780), (1655, 109288), (2648, 68305), (2876, 62890), (3310, 54644), (3595, 50312), (5752, 31445), (6289, 28760), (6620, 27322), (7190, 25156), (12578, 14380), (13240, 13661)]