18638280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2251}}^1$

素因数の和:2291

約数の個数: 96

約数和(自身を含む): 63236160

約数和(自身を除く): 44597880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2251, 2760, 4140, 4502, 6753, 8280, 9004, 11255, 13506, 18008, 20259, 22510, 27012, 33765, 40518, 45020, 51773, 54024, 67530, 81036, 90040, 101295, 103546, 135060, 155319, 162072, 202590, 207092, 258865, 270120, 310638, 405180, 414184, 465957, 517730, 621276, 776595, 810360, 931914, 1035460, 1242552, 1553190, 1863828, 2070920, 2329785, 3106380, 3727656, 4659570, 6212760, 9319140, 18638280]

約数ペア:

[(1, 18638280), (2, 9319140), (3, 6212760), (4, 4659570), (5, 3727656), (6, 3106380), (8, 2329785), (9, 2070920), (10, 1863828), (12, 1553190), (15, 1242552), (18, 1035460), (20, 931914), (23, 810360), (24, 776595), (30, 621276), (36, 517730), (40, 465957), (45, 414184), (46, 405180), (60, 310638), (69, 270120), (72, 258865), (90, 207092), (92, 202590), (115, 162072), (120, 155319), (138, 135060), (180, 103546), (184, 101295), (207, 90040), (230, 81036), (276, 67530), (345, 54024), (360, 51773), (414, 45020), (460, 40518), (552, 33765), (690, 27012), (828, 22510), (920, 20259), (1035, 18008), (1380, 13506), (1656, 11255), (2070, 9004), (2251, 8280), (2760, 6753), (4140, 4502)]