20512890840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{127663}}^1$

素因数の和:127793

約数の個数: 128

約数和(自身を含む): 66916362240

約数和(自身を除く): 46403471400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 103, 104, 120, 130, 156, 195, 206, 260, 309, 312, 390, 412, 515, 520, 618, 780, 824, 1030, 1236, 1339, 1545, 1560, 2060, 2472, 2678, 3090, 4017, 4120, 5356, 6180, 6695, 8034, 10712, 12360, 13390, 16068, 20085, 26780, 32136, 40170, 53560, 80340, 127663, 160680, 255326, 382989, 510652, 638315, 765978, 1021304, 1276630, 1531956, 1659619, 1914945, 2553260, 3063912, 3319238, 3829890, 4978857, 5106520, 6638476, 7659780, 8298095, 9957714, 13149289, 13276952, 15319560, 16596190, 19915428, 24894285, 26298578, 33192380, 39447867, 39830856, 49788570, 52597156, 65746445, 66384760, 78895734, 99577140, 105194312, 131492890, 157791468, 170940757, 197239335, 199154280, 262985780, 315582936, 341881514, 394478670, 512822271, 525971560, 683763028, 788957340, 854703785, 1025644542, 1367526056, 1577914680, 1709407570, 2051289084, 2564111355, 3418815140, 4102578168, 5128222710, 6837630280, 10256445420, 20512890840]

約数ペア:

[(1, 20512890840), (2, 10256445420), (3, 6837630280), (4, 5128222710), (5, 4102578168), (6, 3418815140), (8, 2564111355), (10, 2051289084), (12, 1709407570), (13, 1577914680), (15, 1367526056), (20, 1025644542), (24, 854703785), (26, 788957340), (30, 683763028), (39, 525971560), (40, 512822271), (52, 394478670), (60, 341881514), (65, 315582936), (78, 262985780), (103, 199154280), (104, 197239335), (120, 170940757), (130, 157791468), (156, 131492890), (195, 105194312), (206, 99577140), (260, 78895734), (309, 66384760), (312, 65746445), (390, 52597156), (412, 49788570), (515, 39830856), (520, 39447867), (618, 33192380), (780, 26298578), (824, 24894285), (1030, 19915428), (1236, 16596190), (1339, 15319560), (1545, 13276952), (1560, 13149289), (2060, 9957714), (2472, 8298095), (2678, 7659780), (3090, 6638476), (4017, 5106520), (4120, 4978857), (5356, 3829890), (6180, 3319238), (6695, 3063912), (8034, 2553260), (10712, 1914945), (12360, 1659619), (13390, 1531956), (16068, 1276630), (20085, 1021304), (26780, 765978), (32136, 638315), (40170, 510652), (53560, 382989), (80340, 255326), (127663, 160680)]