64401640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:970

約数の個数: 64

約数和(自身を含む): 154224000

約数和(自身を除く): 89822360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 190, 202, 380, 404, 505, 760, 808, 839, 1010, 1678, 1919, 2020, 3356, 3838, 4040, 4195, 6712, 7676, 8390, 9595, 15352, 15941, 16780, 19190, 31882, 33560, 38380, 63764, 76760, 79705, 84739, 127528, 159410, 169478, 318820, 338956, 423695, 637640, 677912, 847390, 1610041, 1694780, 3220082, 3389560, 6440164, 8050205, 12880328, 16100410, 32200820, 64401640]

約数ペア:

[(1, 64401640), (2, 32200820), (4, 16100410), (5, 12880328), (8, 8050205), (10, 6440164), (19, 3389560), (20, 3220082), (38, 1694780), (40, 1610041), (76, 847390), (95, 677912), (101, 637640), (152, 423695), (190, 338956), (202, 318820), (380, 169478), (404, 159410), (505, 127528), (760, 84739), (808, 79705), (839, 76760), (1010, 63764), (1678, 38380), (1919, 33560), (2020, 31882), (3356, 19190), (3838, 16780), (4040, 15941), (4195, 15352), (6712, 9595), (7676, 8390)]