66267640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{15199}}^1$

素因数の和:15319

約数の個数: 32

約数和(自身を含む): 150480000

約数和(自身を除く): 84212360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 15199, 30398, 60796, 75995, 121592, 151990, 303980, 607960, 1656691, 3313382, 6626764, 8283455, 13253528, 16566910, 33133820, 66267640]

約数ペア:

[(1, 66267640), (2, 33133820), (4, 16566910), (5, 13253528), (8, 8283455), (10, 6626764), (20, 3313382), (40, 1656691), (109, 607960), (218, 303980), (436, 151990), (545, 121592), (872, 75995), (1090, 60796), (2180, 30398), (4360, 15199)]