494654320

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1\times {\mathrm{449}}^1$

素因数の和:802

約数の個数: 80

約数和(自身を含む): 1181174400

約数和(自身を除く): 686520080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 293, 376, 449, 470, 586, 752, 898, 940, 1172, 1465, 1796, 1880, 2245, 2344, 2930, 3592, 3760, 4490, 4688, 5860, 7184, 8980, 11720, 13771, 17960, 21103, 23440, 27542, 35920, 42206, 55084, 68855, 84412, 105515, 110168, 131557, 137710, 168824, 211030, 220336, 263114, 275420, 337648, 422060, 526228, 550840, 657785, 844120, 1052456, 1101680, 1315570, 1688240, 2104912, 2631140, 5262280, 6183179, 10524560, 12366358, 24732716, 30915895, 49465432, 61831790, 98930864, 123663580, 247327160, 494654320]

約数ペア:

[(1, 494654320), (2, 247327160), (4, 123663580), (5, 98930864), (8, 61831790), (10, 49465432), (16, 30915895), (20, 24732716), (40, 12366358), (47, 10524560), (80, 6183179), (94, 5262280), (188, 2631140), (235, 2104912), (293, 1688240), (376, 1315570), (449, 1101680), (470, 1052456), (586, 844120), (752, 657785), (898, 550840), (940, 526228), (1172, 422060), (1465, 337648), (1796, 275420), (1880, 263114), (2245, 220336), (2344, 211030), (2930, 168824), (3592, 137710), (3760, 131557), (4490, 110168), (4688, 105515), (5860, 84412), (7184, 68855), (8980, 55084), (11720, 42206), (13771, 35920), (17960, 27542), (21103, 23440)]