8515740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1999}}^1$

素因数の和:2082

約数の個数: 48

約数和(自身を含む): 24192000

約数和(自身を除く): 15676260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 1999, 2130, 3998, 4260, 5997, 7996, 9995, 11994, 19990, 23988, 29985, 39980, 59970, 119940, 141929, 283858, 425787, 567716, 709645, 851574, 1419290, 1703148, 2128935, 2838580, 4257870, 8515740]

約数ペア:

[(1, 8515740), (2, 4257870), (3, 2838580), (4, 2128935), (5, 1703148), (6, 1419290), (10, 851574), (12, 709645), (15, 567716), (20, 425787), (30, 283858), (60, 141929), (71, 119940), (142, 59970), (213, 39980), (284, 29985), (355, 23988), (426, 19990), (710, 11994), (852, 9995), (1065, 7996), (1420, 5997), (1999, 4260), (2130, 3998)]