81989970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{1979}}^1$

素因数の和:3370

約数の個数: 32

約数和(自身を含む): 197017920

約数和(自身を除く): 115027950

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 1381, 1979, 2762, 3958, 4143, 5937, 6905, 8286, 9895, 11874, 13810, 19790, 20715, 29685, 41430, 59370, 2732999, 5465998, 8198997, 13664995, 16397994, 27329990, 40994985, 81989970]

約数ペア:

[(1, 81989970), (2, 40994985), (3, 27329990), (5, 16397994), (6, 13664995), (10, 8198997), (15, 5465998), (30, 2732999), (1381, 59370), (1979, 41430), (2762, 29685), (3958, 20715), (4143, 19790), (5937, 13810), (6905, 11874), (8286, 9895)]