15856720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 41390208

約数和(自身を除く): 25533488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 37, 40, 44, 55, 74, 80, 88, 110, 148, 176, 185, 220, 296, 370, 407, 440, 487, 592, 740, 814, 880, 974, 1480, 1628, 1948, 2035, 2435, 2960, 3256, 3896, 4070, 4870, 5357, 6512, 7792, 8140, 9740, 10714, 16280, 18019, 19480, 21428, 26785, 32560, 36038, 38960, 42856, 53570, 72076, 85712, 90095, 107140, 144152, 180190, 198209, 214280, 288304, 360380, 396418, 428560, 720760, 792836, 991045, 1441520, 1585672, 1982090, 3171344, 3964180, 7928360, 15856720]

約数ペア:

[(1, 15856720), (2, 7928360), (4, 3964180), (5, 3171344), (8, 1982090), (10, 1585672), (11, 1441520), (16, 991045), (20, 792836), (22, 720760), (37, 428560), (40, 396418), (44, 360380), (55, 288304), (74, 214280), (80, 198209), (88, 180190), (110, 144152), (148, 107140), (176, 90095), (185, 85712), (220, 72076), (296, 53570), (370, 42856), (407, 38960), (440, 36038), (487, 32560), (592, 26785), (740, 21428), (814, 19480), (880, 18019), (974, 16280), (1480, 10714), (1628, 9740), (1948, 8140), (2035, 7792), (2435, 6512), (2960, 5357), (3256, 4870), (3896, 4070)]