12855280

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:194

約数の個数: 80

約数和(自身を含む): 31721184

約数和(自身を除く): 18865904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 43, 74, 80, 86, 101, 148, 172, 185, 202, 215, 296, 344, 370, 404, 430, 505, 592, 688, 740, 808, 860, 1010, 1480, 1591, 1616, 1720, 2020, 2960, 3182, 3440, 3737, 4040, 4343, 6364, 7474, 7955, 8080, 8686, 12728, 14948, 15910, 17372, 18685, 21715, 25456, 29896, 31820, 34744, 37370, 43430, 59792, 63640, 69488, 74740, 86860, 127280, 149480, 160691, 173720, 298960, 321382, 347440, 642764, 803455, 1285528, 1606910, 2571056, 3213820, 6427640, 12855280]

約数ペア:

[(1, 12855280), (2, 6427640), (4, 3213820), (5, 2571056), (8, 1606910), (10, 1285528), (16, 803455), (20, 642764), (37, 347440), (40, 321382), (43, 298960), (74, 173720), (80, 160691), (86, 149480), (101, 127280), (148, 86860), (172, 74740), (185, 69488), (202, 63640), (215, 59792), (296, 43430), (344, 37370), (370, 34744), (404, 31820), (430, 29896), (505, 25456), (592, 21715), (688, 18685), (740, 17372), (808, 15910), (860, 14948), (1010, 12728), (1480, 8686), (1591, 8080), (1616, 7955), (1720, 7474), (2020, 6364), (2960, 4343), (3182, 4040), (3440, 3737)]