66017720

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{3389}}^1$

素因数の和:3887

約数の個数: 32

約数和(自身を含む): 148888800

約数和(自身を除く): 82871080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3389, 3896, 4870, 6778, 9740, 13556, 16945, 19480, 27112, 33890, 67780, 135560, 1650443, 3300886, 6601772, 8252215, 13203544, 16504430, 33008860, 66017720]

約数ペア:

[(1, 66017720), (2, 33008860), (4, 16504430), (5, 13203544), (8, 8252215), (10, 6601772), (20, 3300886), (40, 1650443), (487, 135560), (974, 67780), (1948, 33890), (2435, 27112), (3389, 19480), (3896, 16945), (4870, 13556), (6778, 9740)]