66805880

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2417}}^1$

素因数の和:3119

約数の個数: 32

約数和(自身を含む): 150593040

約数和(自身を除く): 83787160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2417, 2764, 3455, 4834, 5528, 6910, 9668, 12085, 13820, 19336, 24170, 27640, 48340, 96680, 1670147, 3340294, 6680588, 8350735, 13361176, 16701470, 33402940, 66805880]

約数ペア:

[(1, 66805880), (2, 33402940), (4, 16701470), (5, 13361176), (8, 8350735), (10, 6680588), (20, 3340294), (40, 1670147), (691, 96680), (1382, 48340), (2417, 27640), (2764, 24170), (3455, 19336), (4834, 13820), (5528, 12085), (6910, 9668)]