281154080

素因数分解:

$2^5\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2543}}^1$

素因数の和:3249

約数の個数: 48

約数和(自身を含む): 665449344

約数和(自身を除く): 384295264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 691, 1382, 2543, 2764, 3455, 5086, 5528, 6910, 10172, 11056, 12715, 13820, 20344, 22112, 25430, 27640, 40688, 50860, 55280, 81376, 101720, 110560, 203440, 406880, 1757213, 3514426, 7028852, 8786065, 14057704, 17572130, 28115408, 35144260, 56230816, 70288520, 140577040, 281154080]

約数ペア:

[(1, 281154080), (2, 140577040), (4, 70288520), (5, 56230816), (8, 35144260), (10, 28115408), (16, 17572130), (20, 14057704), (32, 8786065), (40, 7028852), (80, 3514426), (160, 1757213), (691, 406880), (1382, 203440), (2543, 110560), (2764, 101720), (3455, 81376), (5086, 55280), (5528, 50860), (6910, 40688), (10172, 27640), (11056, 25430), (12715, 22112), (13820, 20344)]