20643168

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:189

約数の個数: 192

約数和(自身を含む): 71124480

約数和(自身を除く): 50481312

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 17, 21, 24, 26, 28, 32, 34, 39, 42, 48, 51, 52, 56, 68, 78, 84, 91, 96, 102, 104, 112, 119, 136, 139, 156, 168, 182, 204, 208, 221, 224, 238, 272, 273, 278, 312, 336, 357, 364, 408, 416, 417, 442, 476, 544, 546, 556, 624, 663, 672, 714, 728, 816, 834, 884, 952, 973, 1092, 1112, 1248, 1326, 1428, 1456, 1547, 1632, 1668, 1768, 1807, 1904, 1946, 2184, 2224, 2363, 2652, 2856, 2912, 2919, 3094, 3336, 3536, 3614, 3808, 3892, 4368, 4448, 4641, 4726, 5304, 5421, 5712, 5838, 6188, 6672, 7072, 7089, 7228, 7784, 8736, 9282, 9452, 10608, 10842, 11424, 11676, 12376, 12649, 13344, 14178, 14456, 15568, 16541, 18564, 18904, 21216, 21684, 23352, 24752, 25298, 28356, 28912, 30719, 31136, 33082, 37128, 37808, 37947, 43368, 46704, 49504, 49623, 50596, 56712, 57824, 61438, 66164, 74256, 75616, 75894, 86736, 92157, 93408, 99246, 101192, 113424, 122876, 132328, 148512, 151788, 173472, 184314, 198492, 202384, 215033, 226848, 245752, 264656, 303576, 368628, 396984, 404768, 430066, 491504, 529312, 607152, 645099, 737256, 793968, 860132, 983008, 1214304, 1290198, 1474512, 1587936, 1720264, 2580396, 2949024, 3440528, 5160792, 6881056, 10321584, 20643168]

約数ペア:

[(1, 20643168), (2, 10321584), (3, 6881056), (4, 5160792), (6, 3440528), (7, 2949024), (8, 2580396), (12, 1720264), (13, 1587936), (14, 1474512), (16, 1290198), (17, 1214304), (21, 983008), (24, 860132), (26, 793968), (28, 737256), (32, 645099), (34, 607152), (39, 529312), (42, 491504), (48, 430066), (51, 404768), (52, 396984), (56, 368628), (68, 303576), (78, 264656), (84, 245752), (91, 226848), (96, 215033), (102, 202384), (104, 198492), (112, 184314), (119, 173472), (136, 151788), (139, 148512), (156, 132328), (168, 122876), (182, 113424), (204, 101192), (208, 99246), (221, 93408), (224, 92157), (238, 86736), (272, 75894), (273, 75616), (278, 74256), (312, 66164), (336, 61438), (357, 57824), (364, 56712), (408, 50596), (416, 49623), (417, 49504), (442, 46704), (476, 43368), (544, 37947), (546, 37808), (556, 37128), (624, 33082), (663, 31136), (672, 30719), (714, 28912), (728, 28356), (816, 25298), (834, 24752), (884, 23352), (952, 21684), (973, 21216), (1092, 18904), (1112, 18564), (1248, 16541), (1326, 15568), (1428, 14456), (1456, 14178), (1547, 13344), (1632, 12649), (1668, 12376), (1768, 11676), (1807, 11424), (1904, 10842), (1946, 10608), (2184, 9452), (2224, 9282), (2363, 8736), (2652, 7784), (2856, 7228), (2912, 7089), (2919, 7072), (3094, 6672), (3336, 6188), (3536, 5838), (3614, 5712), (3808, 5421), (3892, 5304), (4368, 4726), (4448, 4641)]