82387640

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19997}}^1$

素因数の和:20111

約数の個数: 32

約数和(自身を含む): 187181280

約数和(自身を除く): 104793640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 19997, 39994, 79988, 99985, 159976, 199970, 399940, 799880, 2059691, 4119382, 8238764, 10298455, 16477528, 20596910, 41193820, 82387640]

約数ペア:

[(1, 82387640), (2, 41193820), (4, 20596910), (5, 16477528), (8, 10298455), (10, 8238764), (20, 4119382), (40, 2059691), (103, 799880), (206, 399940), (412, 199970), (515, 159976), (824, 99985), (1030, 79988), (2060, 39994), (4120, 19997)]