640497888

素因数分解:

$2^5\times 3^3\times {\mathrm{859}}^1\times {\mathrm{863}}^1$

素因数の和:1741

約数の個数: 96

約数和(自身を含む): 1872460800

約数和(自身を除く): 1231962912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 432, 859, 863, 864, 1718, 1726, 2577, 2589, 3436, 3452, 5154, 5178, 6872, 6904, 7731, 7767, 10308, 10356, 13744, 13808, 15462, 15534, 20616, 20712, 23193, 23301, 27488, 27616, 30924, 31068, 41232, 41424, 46386, 46602, 61848, 62136, 82464, 82848, 92772, 93204, 123696, 124272, 185544, 186408, 247392, 248544, 371088, 372816, 741317, 742176, 745632, 1482634, 2223951, 2965268, 4447902, 5930536, 6671853, 8895804, 11861072, 13343706, 17791608, 20015559, 23722144, 26687412, 35583216, 40031118, 53374824, 71166432, 80062236, 106749648, 160124472, 213499296, 320248944, 640497888]

約数ペア:

[(1, 640497888), (2, 320248944), (3, 213499296), (4, 160124472), (6, 106749648), (8, 80062236), (9, 71166432), (12, 53374824), (16, 40031118), (18, 35583216), (24, 26687412), (27, 23722144), (32, 20015559), (36, 17791608), (48, 13343706), (54, 11861072), (72, 8895804), (96, 6671853), (108, 5930536), (144, 4447902), (216, 2965268), (288, 2223951), (432, 1482634), (859, 745632), (863, 742176), (864, 741317), (1718, 372816), (1726, 371088), (2577, 248544), (2589, 247392), (3436, 186408), (3452, 185544), (5154, 124272), (5178, 123696), (6872, 93204), (6904, 92772), (7731, 82848), (7767, 82464), (10308, 62136), (10356, 61848), (13744, 46602), (13808, 46386), (15462, 41424), (15534, 41232), (20616, 31068), (20712, 30924), (23193, 27616), (23301, 27488)]