26780000

素因数分解:

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

素因数の和:146

約数の個数: 120

約数和(自身を含む): 71639568

約数和(自身を除く): 44859568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 103, 104, 125, 130, 160, 200, 206, 208, 250, 260, 325, 400, 412, 416, 500, 515, 520, 625, 650, 800, 824, 1000, 1030, 1040, 1250, 1300, 1339, 1625, 1648, 2000, 2060, 2080, 2500, 2575, 2600, 2678, 3250, 3296, 4000, 4120, 5000, 5150, 5200, 5356, 6500, 6695, 8125, 8240, 10000, 10300, 10400, 10712, 12875, 13000, 13390, 16250, 16480, 20000, 20600, 21424, 25750, 26000, 26780, 32500, 33475, 41200, 42848, 51500, 52000, 53560, 64375, 65000, 66950, 82400, 103000, 107120, 128750, 130000, 133900, 167375, 206000, 214240, 257500, 260000, 267800, 334750, 412000, 515000, 535600, 669500, 836875, 1030000, 1071200, 1339000, 1673750, 2060000, 2678000, 3347500, 5356000, 6695000, 13390000, 26780000]

約数ペア:

[(1, 26780000), (2, 13390000), (4, 6695000), (5, 5356000), (8, 3347500), (10, 2678000), (13, 2060000), (16, 1673750), (20, 1339000), (25, 1071200), (26, 1030000), (32, 836875), (40, 669500), (50, 535600), (52, 515000), (65, 412000), (80, 334750), (100, 267800), (103, 260000), (104, 257500), (125, 214240), (130, 206000), (160, 167375), (200, 133900), (206, 130000), (208, 128750), (250, 107120), (260, 103000), (325, 82400), (400, 66950), (412, 65000), (416, 64375), (500, 53560), (515, 52000), (520, 51500), (625, 42848), (650, 41200), (800, 33475), (824, 32500), (1000, 26780), (1030, 26000), (1040, 25750), (1250, 21424), (1300, 20600), (1339, 20000), (1625, 16480), (1648, 16250), (2000, 13390), (2060, 13000), (2080, 12875), (2500, 10712), (2575, 10400), (2600, 10300), (2678, 10000), (3250, 8240), (3296, 8125), (4000, 6695), (4120, 6500), (5000, 5356), (5150, 5200)]