2678000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:139

約数の個数: 80

約数和(自身を含む): 7041216

約数和(自身を除く): 4363216

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 103, 104, 125, 130, 200, 206, 208, 250, 260, 325, 400, 412, 500, 515, 520, 650, 824, 1000, 1030, 1040, 1300, 1339, 1625, 1648, 2000, 2060, 2575, 2600, 2678, 3250, 4120, 5150, 5200, 5356, 6500, 6695, 8240, 10300, 10712, 12875, 13000, 13390, 20600, 21424, 25750, 26000, 26780, 33475, 41200, 51500, 53560, 66950, 103000, 107120, 133900, 167375, 206000, 267800, 334750, 535600, 669500, 1339000, 2678000]

約数ペア:

[(1, 2678000), (2, 1339000), (4, 669500), (5, 535600), (8, 334750), (10, 267800), (13, 206000), (16, 167375), (20, 133900), (25, 107120), (26, 103000), (40, 66950), (50, 53560), (52, 51500), (65, 41200), (80, 33475), (100, 26780), (103, 26000), (104, 25750), (125, 21424), (130, 20600), (200, 13390), (206, 13000), (208, 12875), (250, 10712), (260, 10300), (325, 8240), (400, 6695), (412, 6500), (500, 5356), (515, 5200), (520, 5150), (650, 4120), (824, 3250), (1000, 2678), (1030, 2600), (1040, 2575), (1300, 2060), (1339, 2000), (1625, 1648)]