208686780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{128819}}^1$

素因数の和:128840

約数の個数: 60

約数和(自身を含む): 654663240

約数和(自身を除く): 445976460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 128819, 257638, 386457, 515276, 644095, 772914, 1159371, 1288190, 1545828, 1932285, 2318742, 2576380, 3478113, 3864570, 4637484, 5796855, 6956226, 7729140, 10434339, 11593710, 13912452, 17390565, 20868678, 23187420, 34781130, 41737356, 52171695, 69562260, 104343390, 208686780]

約数ペア:

[(1, 208686780), (2, 104343390), (3, 69562260), (4, 52171695), (5, 41737356), (6, 34781130), (9, 23187420), (10, 20868678), (12, 17390565), (15, 13912452), (18, 11593710), (20, 10434339), (27, 7729140), (30, 6956226), (36, 5796855), (45, 4637484), (54, 3864570), (60, 3478113), (81, 2576380), (90, 2318742), (108, 1932285), (135, 1545828), (162, 1288190), (180, 1159371), (270, 772914), (324, 644095), (405, 515276), (540, 386457), (810, 257638), (1620, 128819)]