638756085

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2657}}^1$

素因数の和:2754

約数の個数: 64

約数和(自身を含む): 1175814144

約数和(自身を除く): 537058059

約数列:

[1, 3, 5, 11, 15, 31, 33, 47, 55, 93, 141, 155, 165, 235, 341, 465, 517, 705, 1023, 1457, 1551, 1705, 2585, 2657, 4371, 5115, 7285, 7755, 7971, 13285, 16027, 21855, 29227, 39855, 48081, 80135, 82367, 87681, 124879, 146135, 240405, 247101, 374637, 411835, 438405, 624395, 906037, 1235505, 1373669, 1873185, 2718111, 3871249, 4121007, 4530185, 6868345, 11613747, 13590555, 19356245, 20605035, 42583739, 58068735, 127751217, 212918695, 638756085]

約数ペア:

[(1, 638756085), (3, 212918695), (5, 127751217), (11, 58068735), (15, 42583739), (31, 20605035), (33, 19356245), (47, 13590555), (55, 11613747), (93, 6868345), (141, 4530185), (155, 4121007), (165, 3871249), (235, 2718111), (341, 1873185), (465, 1373669), (517, 1235505), (705, 906037), (1023, 624395), (1457, 438405), (1551, 411835), (1705, 374637), (2585, 247101), (2657, 240405), (4371, 146135), (5115, 124879), (7285, 87681), (7755, 82367), (7971, 80135), (13285, 48081), (16027, 39855), (21855, 29227)]