256165740

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{52709}}^1$

素因数の和:52733

約数の個数: 72

約数和(自身を含む): 805830480

約数和(自身を除く): 549664740

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, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 52709, 105418, 158127, 210836, 263545, 316254, 474381, 527090, 632508, 790635, 948762, 1054180, 1423143, 1581270, 1897524, 2371905, 2846286, 3162540, 4269429, 4743810, 5692572, 7115715, 8538858, 9487620, 12808287, 14231430, 17077716, 21347145, 25616574, 28462860, 42694290, 51233148, 64041435, 85388580, 128082870, 256165740]

約数ペア:

[(1, 256165740), (2, 128082870), (3, 85388580), (4, 64041435), (5, 51233148), (6, 42694290), (9, 28462860), (10, 25616574), (12, 21347145), (15, 17077716), (18, 14231430), (20, 12808287), (27, 9487620), (30, 8538858), (36, 7115715), (45, 5692572), (54, 4743810), (60, 4269429), (81, 3162540), (90, 2846286), (108, 2371905), (135, 1897524), (162, 1581270), (180, 1423143), (243, 1054180), (270, 948762), (324, 790635), (405, 632508), (486, 527090), (540, 474381), (810, 316254), (972, 263545), (1215, 210836), (1620, 158127), (2430, 105418), (4860, 52709)]