81753840

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{5407}}^1$

素因数の和:5436

約数の個数: 160

約数和(自身を含む): 321884160

約数和(自身を除く): 240130320

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, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 5407, 7560, 10814, 15120, 16221, 21628, 27035, 32442, 37849, 43256, 48663, 54070, 64884, 75698, 81105, 86512, 97326, 108140, 113547, 129768, 145989, 151396, 162210, 189245, 194652, 216280, 227094, 243315, 259536, 291978, 302792, 324420, 340641, 378490, 389304, 432560, 454188, 486630, 567735, 583956, 605584, 648840, 681282, 729945, 756980, 778608, 908376, 973260, 1021923, 1135470, 1167912, 1297680, 1362564, 1459890, 1513960, 1703205, 1816752, 1946520, 2043846, 2270940, 2335824, 2725128, 2919780, 3027920, 3406410, 3893040, 4087692, 4541880, 5109615, 5450256, 5839560, 6812820, 8175384, 9083760, 10219230, 11679120, 13625640, 16350768, 20438460, 27251280, 40876920, 81753840]

約数ペア:

[(1, 81753840), (2, 40876920), (3, 27251280), (4, 20438460), (5, 16350768), (6, 13625640), (7, 11679120), (8, 10219230), (9, 9083760), (10, 8175384), (12, 6812820), (14, 5839560), (15, 5450256), (16, 5109615), (18, 4541880), (20, 4087692), (21, 3893040), (24, 3406410), (27, 3027920), (28, 2919780), (30, 2725128), (35, 2335824), (36, 2270940), (40, 2043846), (42, 1946520), (45, 1816752), (48, 1703205), (54, 1513960), (56, 1459890), (60, 1362564), (63, 1297680), (70, 1167912), (72, 1135470), (80, 1021923), (84, 973260), (90, 908376), (105, 778608), (108, 756980), (112, 729945), (120, 681282), (126, 648840), (135, 605584), (140, 583956), (144, 567735), (168, 486630), (180, 454188), (189, 432560), (210, 389304), (216, 378490), (240, 340641), (252, 324420), (270, 302792), (280, 291978), (315, 259536), (336, 243315), (360, 227094), (378, 216280), (420, 194652), (432, 189245), (504, 162210), (540, 151396), (560, 145989), (630, 129768), (720, 113547), (756, 108140), (840, 97326), (945, 86512), (1008, 81105), (1080, 75698), (1260, 64884), (1512, 54070), (1680, 48663), (1890, 43256), (2160, 37849), (2520, 32442), (3024, 27035), (3780, 21628), (5040, 16221), (5407, 15120), (7560, 10814)]