20178915400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{19991}}^1$

素因数の和:20124

約数の個数: 144

約数和(自身を含む): 55108347840

約数和(自身を除く): 34929432440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 103, 140, 175, 196, 200, 206, 245, 280, 350, 392, 412, 490, 515, 700, 721, 824, 980, 1030, 1225, 1400, 1442, 1960, 2060, 2450, 2575, 2884, 3605, 4120, 4900, 5047, 5150, 5768, 7210, 9800, 10094, 10300, 14420, 18025, 19991, 20188, 20600, 25235, 28840, 36050, 39982, 40376, 50470, 72100, 79964, 99955, 100940, 126175, 139937, 144200, 159928, 199910, 201880, 252350, 279874, 399820, 499775, 504700, 559748, 699685, 799640, 979559, 999550, 1009400, 1119496, 1399370, 1959118, 1999100, 2059073, 2798740, 3498425, 3918236, 3998200, 4118146, 4897795, 5597480, 6996850, 7836472, 8236292, 9795590, 10295365, 13993700, 14413511, 16472584, 19591180, 20590730, 24488975, 27987400, 28827022, 39182360, 41181460, 48977950, 51476825, 57654044, 72067555, 82362920, 97955900, 100894577, 102953650, 115308088, 144135110, 195911800, 201789154, 205907300, 288270220, 360337775, 403578308, 411814600, 504472885, 576540440, 720675550, 807156616, 1008945770, 1441351100, 2017891540, 2522364425, 2882702200, 4035783080, 5044728850, 10089457700, 20178915400]

約数ペア:

[(1, 20178915400), (2, 10089457700), (4, 5044728850), (5, 4035783080), (7, 2882702200), (8, 2522364425), (10, 2017891540), (14, 1441351100), (20, 1008945770), (25, 807156616), (28, 720675550), (35, 576540440), (40, 504472885), (49, 411814600), (50, 403578308), (56, 360337775), (70, 288270220), (98, 205907300), (100, 201789154), (103, 195911800), (140, 144135110), (175, 115308088), (196, 102953650), (200, 100894577), (206, 97955900), (245, 82362920), (280, 72067555), (350, 57654044), (392, 51476825), (412, 48977950), (490, 41181460), (515, 39182360), (700, 28827022), (721, 27987400), (824, 24488975), (980, 20590730), (1030, 19591180), (1225, 16472584), (1400, 14413511), (1442, 13993700), (1960, 10295365), (2060, 9795590), (2450, 8236292), (2575, 7836472), (2884, 6996850), (3605, 5597480), (4120, 4897795), (4900, 4118146), (5047, 3998200), (5150, 3918236), (5768, 3498425), (7210, 2798740), (9800, 2059073), (10094, 1999100), (10300, 1959118), (14420, 1399370), (18025, 1119496), (19991, 1009400), (20188, 999550), (20600, 979559), (25235, 799640), (28840, 699685), (36050, 559748), (39982, 504700), (40376, 499775), (50470, 399820), (72100, 279874), (79964, 252350), (99955, 201880), (100940, 199910), (126175, 159928), (139937, 144200)]