80321220

素因数分解:

$2^2\times 3^6\times 5^1\times 7^1\times {\mathrm{787}}^1$

素因数の和:821

約数の個数: 168

約数和(自身を含む): 289391424

約数和(自身を除く): 209070204

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 540, 567, 630, 729, 756, 787, 810, 945, 972, 1134, 1215, 1260, 1458, 1574, 1620, 1701, 1890, 2268, 2361, 2430, 2835, 2916, 3148, 3402, 3645, 3780, 3935, 4722, 4860, 5103, 5509, 5670, 6804, 7083, 7290, 7870, 8505, 9444, 10206, 11018, 11340, 11805, 14166, 14580, 15740, 16527, 17010, 20412, 21249, 22036, 23610, 25515, 27545, 28332, 33054, 34020, 35415, 42498, 47220, 49581, 51030, 55090, 63747, 66108, 70830, 82635, 84996, 99162, 102060, 106245, 110180, 127494, 141660, 148743, 165270, 191241, 198324, 212490, 247905, 254988, 297486, 318735, 330540, 382482, 424980, 446229, 495810, 573723, 594972, 637470, 743715, 764964, 892458, 956205, 991620, 1147446, 1274940, 1338687, 1487430, 1784916, 1912410, 2231145, 2294892, 2677374, 2868615, 2974860, 3824820, 4016061, 4462290, 5354748, 5737230, 6693435, 8032122, 8924580, 11474460, 13386870, 16064244, 20080305, 26773740, 40160610, 80321220]

約数ペア:

[(1, 80321220), (2, 40160610), (3, 26773740), (4, 20080305), (5, 16064244), (6, 13386870), (7, 11474460), (9, 8924580), (10, 8032122), (12, 6693435), (14, 5737230), (15, 5354748), (18, 4462290), (20, 4016061), (21, 3824820), (27, 2974860), (28, 2868615), (30, 2677374), (35, 2294892), (36, 2231145), (42, 1912410), (45, 1784916), (54, 1487430), (60, 1338687), (63, 1274940), (70, 1147446), (81, 991620), (84, 956205), (90, 892458), (105, 764964), (108, 743715), (126, 637470), (135, 594972), (140, 573723), (162, 495810), (180, 446229), (189, 424980), (210, 382482), (243, 330540), (252, 318735), (270, 297486), (315, 254988), (324, 247905), (378, 212490), (405, 198324), (420, 191241), (486, 165270), (540, 148743), (567, 141660), (630, 127494), (729, 110180), (756, 106245), (787, 102060), (810, 99162), (945, 84996), (972, 82635), (1134, 70830), (1215, 66108), (1260, 63747), (1458, 55090), (1574, 51030), (1620, 49581), (1701, 47220), (1890, 42498), (2268, 35415), (2361, 34020), (2430, 33054), (2835, 28332), (2916, 27545), (3148, 25515), (3402, 23610), (3645, 22036), (3780, 21249), (3935, 20412), (4722, 17010), (4860, 16527), (5103, 15740), (5509, 14580), (5670, 14166), (6804, 11805), (7083, 11340), (7290, 11018), (7870, 10206), (8505, 9444)]