798400520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{2393}}^1$

素因数の和:2862

約数の個数: 64

約数和(自身を含む): 1896048000

約数和(自身を除く): 1097647480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 439, 760, 878, 1756, 2195, 2393, 3512, 4390, 4786, 8341, 8780, 9572, 11965, 16682, 17560, 19144, 23930, 33364, 41705, 45467, 47860, 66728, 83410, 90934, 95720, 166820, 181868, 227335, 333640, 363736, 454670, 909340, 1050527, 1818680, 2101054, 4202108, 5252635, 8404216, 10505270, 19960013, 21010540, 39920026, 42021080, 79840052, 99800065, 159680104, 199600130, 399200260, 798400520]

約数ペア:

[(1, 798400520), (2, 399200260), (4, 199600130), (5, 159680104), (8, 99800065), (10, 79840052), (19, 42021080), (20, 39920026), (38, 21010540), (40, 19960013), (76, 10505270), (95, 8404216), (152, 5252635), (190, 4202108), (380, 2101054), (439, 1818680), (760, 1050527), (878, 909340), (1756, 454670), (2195, 363736), (2393, 333640), (3512, 227335), (4390, 181868), (4786, 166820), (8341, 95720), (8780, 90934), (9572, 83410), (11965, 66728), (16682, 47860), (17560, 45467), (19144, 41705), (23930, 33364)]