328428660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{781973}}^1$

素因数の和:781992

約数の個数: 48

約数和(自身を含む): 1050973056

約数和(自身を除く): 722544396

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 781973, 1563946, 2345919, 3127892, 3909865, 4691838, 5473811, 7819730, 9383676, 10947622, 11729595, 15639460, 16421433, 21895244, 23459190, 27369055, 32842866, 46918380, 54738110, 65685732, 82107165, 109476220, 164214330, 328428660]

約数ペア:

[(1, 328428660), (2, 164214330), (3, 109476220), (4, 82107165), (5, 65685732), (6, 54738110), (7, 46918380), (10, 32842866), (12, 27369055), (14, 23459190), (15, 21895244), (20, 16421433), (21, 15639460), (28, 11729595), (30, 10947622), (35, 9383676), (42, 7819730), (60, 5473811), (70, 4691838), (84, 3909865), (105, 3127892), (140, 2345919), (210, 1563946), (420, 781973)]