8513320

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{643}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 19242720

約数和(自身を除く): 10729400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 643, 662, 1286, 1324, 1655, 2572, 2648, 3215, 3310, 5144, 6430, 6620, 12860, 13240, 25720, 212833, 425666, 851332, 1064165, 1702664, 2128330, 4256660, 8513320]

約数ペア:

[(1, 8513320), (2, 4256660), (4, 2128330), (5, 1702664), (8, 1064165), (10, 851332), (20, 425666), (40, 212833), (331, 25720), (643, 13240), (662, 12860), (1286, 6620), (1324, 6430), (1655, 5144), (2572, 3310), (2648, 3215)]