66007720

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3307}}^1$

素因数の和:3817

約数の個数: 32

約数和(自身を含む): 148860000

約数和(自身を除く): 82852280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3307, 3992, 4990, 6614, 9980, 13228, 16535, 19960, 26456, 33070, 66140, 132280, 1650193, 3300386, 6600772, 8250965, 13201544, 16501930, 33003860, 66007720]

約数ペア:

[(1, 66007720), (2, 33003860), (4, 16501930), (5, 13201544), (8, 8250965), (10, 6600772), (20, 3300386), (40, 1650193), (499, 132280), (998, 66140), (1996, 33070), (2495, 26456), (3307, 19960), (3992, 16535), (4990, 13228), (6614, 9980)]