339928760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{769}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 786693600

約数和(自身を除く): 446764840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 257, 344, 430, 514, 769, 860, 1028, 1285, 1538, 1720, 2056, 2570, 3076, 3845, 5140, 6152, 7690, 10280, 11051, 15380, 22102, 30760, 33067, 44204, 55255, 66134, 88408, 110510, 132268, 165335, 197633, 221020, 264536, 330670, 395266, 442040, 661340, 790532, 988165, 1322680, 1581064, 1976330, 3952660, 7905320, 8498219, 16996438, 33992876, 42491095, 67985752, 84982190, 169964380, 339928760]

約数ペア:

[(1, 339928760), (2, 169964380), (4, 84982190), (5, 67985752), (8, 42491095), (10, 33992876), (20, 16996438), (40, 8498219), (43, 7905320), (86, 3952660), (172, 1976330), (215, 1581064), (257, 1322680), (344, 988165), (430, 790532), (514, 661340), (769, 442040), (860, 395266), (1028, 330670), (1285, 264536), (1538, 221020), (1720, 197633), (2056, 165335), (2570, 132268), (3076, 110510), (3845, 88408), (5140, 66134), (6152, 55255), (7690, 44204), (10280, 33067), (11051, 30760), (15380, 22102)]