8779720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2131}}^1$

素因数の和:2245

約数の個数: 32

約数和(自身を含む): 19955520

約数和(自身を除く): 11175800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 2131, 4120, 4262, 8524, 10655, 17048, 21310, 42620, 85240, 219493, 438986, 877972, 1097465, 1755944, 2194930, 4389860, 8779720]

約数ペア:

[(1, 8779720), (2, 4389860), (4, 2194930), (5, 1755944), (8, 1097465), (10, 877972), (20, 438986), (40, 219493), (103, 85240), (206, 42620), (412, 21310), (515, 17048), (824, 10655), (1030, 8524), (2060, 4262), (2131, 4120)]