85757480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{683}}^1$

素因数の和:810

約数の個数: 64

約数和(自身を含む): 200439360

約数和(自身を除く): 114681880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 73, 86, 146, 172, 215, 292, 344, 365, 430, 584, 683, 730, 860, 1366, 1460, 1720, 2732, 2920, 3139, 3415, 5464, 6278, 6830, 12556, 13660, 15695, 25112, 27320, 29369, 31390, 49859, 58738, 62780, 99718, 117476, 125560, 146845, 199436, 234952, 249295, 293690, 398872, 498590, 587380, 997180, 1174760, 1994360, 2143937, 4287874, 8575748, 10719685, 17151496, 21439370, 42878740, 85757480]

約数ペア:

[(1, 85757480), (2, 42878740), (4, 21439370), (5, 17151496), (8, 10719685), (10, 8575748), (20, 4287874), (40, 2143937), (43, 1994360), (73, 1174760), (86, 997180), (146, 587380), (172, 498590), (215, 398872), (292, 293690), (344, 249295), (365, 234952), (430, 199436), (584, 146845), (683, 125560), (730, 117476), (860, 99718), (1366, 62780), (1460, 58738), (1720, 49859), (2732, 31390), (2920, 29369), (3139, 27320), (3415, 25112), (5464, 15695), (6278, 13660), (6830, 12556)]