128111220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2551}}^1$

素因数の和:2603

約数の個数: 120

約数和(自身を含む): 415016448

約数和(自身を除く): 286905228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 372, 405, 465, 540, 558, 620, 810, 837, 930, 1116, 1395, 1620, 1674, 1860, 2511, 2551, 2790, 3348, 4185, 5022, 5102, 5580, 7653, 8370, 10044, 10204, 12555, 12755, 15306, 16740, 22959, 25110, 25510, 30612, 38265, 45918, 50220, 51020, 68877, 76530, 79081, 91836, 114795, 137754, 153060, 158162, 206631, 229590, 237243, 275508, 316324, 344385, 395405, 413262, 459180, 474486, 688770, 711729, 790810, 826524, 948972, 1033155, 1186215, 1377540, 1423458, 1581620, 2066310, 2135187, 2372430, 2846916, 3558645, 4132620, 4270374, 4744860, 6405561, 7117290, 8540748, 10675935, 12811122, 14234580, 21351870, 25622244, 32027805, 42703740, 64055610, 128111220]

約数ペア:

[(1, 128111220), (2, 64055610), (3, 42703740), (4, 32027805), (5, 25622244), (6, 21351870), (9, 14234580), (10, 12811122), (12, 10675935), (15, 8540748), (18, 7117290), (20, 6405561), (27, 4744860), (30, 4270374), (31, 4132620), (36, 3558645), (45, 2846916), (54, 2372430), (60, 2135187), (62, 2066310), (81, 1581620), (90, 1423458), (93, 1377540), (108, 1186215), (124, 1033155), (135, 948972), (155, 826524), (162, 790810), (180, 711729), (186, 688770), (270, 474486), (279, 459180), (310, 413262), (324, 395405), (372, 344385), (405, 316324), (465, 275508), (540, 237243), (558, 229590), (620, 206631), (810, 158162), (837, 153060), (930, 137754), (1116, 114795), (1395, 91836), (1620, 79081), (1674, 76530), (1860, 68877), (2511, 51020), (2551, 50220), (2790, 45918), (3348, 38265), (4185, 30612), (5022, 25510), (5102, 25110), (5580, 22959), (7653, 16740), (8370, 15306), (10044, 12755), (10204, 12555)]