8319280

素因数分解:

$2^4\times 5^1\times {\mathrm{103991}}^1$

素因数の和:104004

約数の個数: 20

約数和(自身を含む): 19342512

約数和(自身を除く): 11023232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103991, 207982, 415964, 519955, 831928, 1039910, 1663856, 2079820, 4159640, 8319280]

約数ペア:

[(1, 8319280), (2, 4159640), (4, 2079820), (5, 1663856), (8, 1039910), (10, 831928), (16, 519955), (20, 415964), (40, 207982), (80, 103991)]