20755728

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:429

約数の個数: 120

約数和(自身を含む): 67704000

約数和(自身を除く): 46948272

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 59, 63, 72, 84, 112, 118, 126, 144, 168, 177, 236, 252, 336, 349, 354, 413, 472, 504, 531, 698, 708, 826, 944, 1008, 1047, 1062, 1239, 1396, 1416, 1652, 2094, 2124, 2443, 2478, 2792, 2832, 3141, 3304, 3717, 4188, 4248, 4886, 4956, 5584, 6282, 6608, 7329, 7434, 8376, 8496, 9772, 9912, 12564, 14658, 14868, 16752, 19544, 19824, 20591, 21987, 25128, 29316, 29736, 39088, 41182, 43974, 50256, 58632, 59472, 61773, 82364, 87948, 117264, 123546, 144137, 164728, 175896, 185319, 247092, 288274, 329456, 351792, 370638, 432411, 494184, 576548, 741276, 864822, 988368, 1153096, 1297233, 1482552, 1729644, 2306192, 2594466, 2965104, 3459288, 5188932, 6918576, 10377864, 20755728]

約数ペア:

[(1, 20755728), (2, 10377864), (3, 6918576), (4, 5188932), (6, 3459288), (7, 2965104), (8, 2594466), (9, 2306192), (12, 1729644), (14, 1482552), (16, 1297233), (18, 1153096), (21, 988368), (24, 864822), (28, 741276), (36, 576548), (42, 494184), (48, 432411), (56, 370638), (59, 351792), (63, 329456), (72, 288274), (84, 247092), (112, 185319), (118, 175896), (126, 164728), (144, 144137), (168, 123546), (177, 117264), (236, 87948), (252, 82364), (336, 61773), (349, 59472), (354, 58632), (413, 50256), (472, 43974), (504, 41182), (531, 39088), (698, 29736), (708, 29316), (826, 25128), (944, 21987), (1008, 20591), (1047, 19824), (1062, 19544), (1239, 16752), (1396, 14868), (1416, 14658), (1652, 12564), (2094, 9912), (2124, 9772), (2443, 8496), (2478, 8376), (2792, 7434), (2832, 7329), (3141, 6608), (3304, 6282), (3717, 5584), (4188, 4956), (4248, 4886)]