19489680

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1289}}^1$

素因数の和:1318

約数の個数: 160

約数和(自身を含む): 76780800

約数和(自身を除く): 57291120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1289, 1512, 1680, 1890, 2160, 2520, 2578, 3024, 3780, 3867, 5040, 5156, 6445, 7560, 7734, 9023, 10312, 11601, 12890, 15120, 15468, 18046, 19335, 20624, 23202, 25780, 27069, 30936, 34803, 36092, 38670, 45115, 46404, 51560, 54138, 58005, 61872, 69606, 72184, 77340, 81207, 90230, 92808, 103120, 108276, 116010, 135345, 139212, 144368, 154680, 162414, 174015, 180460, 185616, 216552, 232020, 243621, 270690, 278424, 309360, 324828, 348030, 360920, 406035, 433104, 464040, 487242, 541380, 556848, 649656, 696060, 721840, 812070, 928080, 974484, 1082760, 1218105, 1299312, 1392120, 1624140, 1948968, 2165520, 2436210, 2784240, 3248280, 3897936, 4872420, 6496560, 9744840, 19489680]

約数ペア:

[(1, 19489680), (2, 9744840), (3, 6496560), (4, 4872420), (5, 3897936), (6, 3248280), (7, 2784240), (8, 2436210), (9, 2165520), (10, 1948968), (12, 1624140), (14, 1392120), (15, 1299312), (16, 1218105), (18, 1082760), (20, 974484), (21, 928080), (24, 812070), (27, 721840), (28, 696060), (30, 649656), (35, 556848), (36, 541380), (40, 487242), (42, 464040), (45, 433104), (48, 406035), (54, 360920), (56, 348030), (60, 324828), (63, 309360), (70, 278424), (72, 270690), (80, 243621), (84, 232020), (90, 216552), (105, 185616), (108, 180460), (112, 174015), (120, 162414), (126, 154680), (135, 144368), (140, 139212), (144, 135345), (168, 116010), (180, 108276), (189, 103120), (210, 92808), (216, 90230), (240, 81207), (252, 77340), (270, 72184), (280, 69606), (315, 61872), (336, 58005), (360, 54138), (378, 51560), (420, 46404), (432, 45115), (504, 38670), (540, 36092), (560, 34803), (630, 30936), (720, 27069), (756, 25780), (840, 23202), (945, 20624), (1008, 19335), (1080, 18046), (1260, 15468), (1289, 15120), (1512, 12890), (1680, 11601), (1890, 10312), (2160, 9023), (2520, 7734), (2578, 7560), (3024, 6445), (3780, 5156), (3867, 5040)]