6620840

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1607}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 15050880

約数和(自身を除く): 8430040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 1607, 2060, 3214, 4120, 6428, 8035, 12856, 16070, 32140, 64280, 165521, 331042, 662084, 827605, 1324168, 1655210, 3310420, 6620840]

約数ペア:

[(1, 6620840), (2, 3310420), (4, 1655210), (5, 1324168), (8, 827605), (10, 662084), (20, 331042), (40, 165521), (103, 64280), (206, 32140), (412, 16070), (515, 12856), (824, 8035), (1030, 6428), (1607, 4120), (2060, 3214)]