28130480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{263}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 75423744

約数和(自身を除く): 47293264

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 191, 263, 280, 382, 526, 560, 764, 955, 1052, 1315, 1337, 1528, 1841, 1910, 2104, 2630, 2674, 3056, 3682, 3820, 4208, 5260, 5348, 6685, 7364, 7640, 9205, 10520, 10696, 13370, 14728, 15280, 18410, 21040, 21392, 26740, 29456, 36820, 50233, 53480, 73640, 100466, 106960, 147280, 200932, 251165, 351631, 401864, 502330, 703262, 803728, 1004660, 1406524, 1758155, 2009320, 2813048, 3516310, 4018640, 5626096, 7032620, 14065240, 28130480]

約数ペア:

[(1, 28130480), (2, 14065240), (4, 7032620), (5, 5626096), (7, 4018640), (8, 3516310), (10, 2813048), (14, 2009320), (16, 1758155), (20, 1406524), (28, 1004660), (35, 803728), (40, 703262), (56, 502330), (70, 401864), (80, 351631), (112, 251165), (140, 200932), (191, 147280), (263, 106960), (280, 100466), (382, 73640), (526, 53480), (560, 50233), (764, 36820), (955, 29456), (1052, 26740), (1315, 21392), (1337, 21040), (1528, 18410), (1841, 15280), (1910, 14728), (2104, 13370), (2630, 10696), (2674, 10520), (3056, 9205), (3682, 7640), (3820, 7364), (4208, 6685), (5260, 5348)]