204745520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2795

約数の個数: 120

約数和(自身を含む): 583110000

約数和(自身を除く): 378364480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 280, 304, 380, 392, 490, 532, 560, 665, 760, 784, 931, 980, 1064, 1330, 1520, 1862, 1960, 2128, 2660, 2749, 3724, 3920, 4655, 5320, 5498, 7448, 9310, 10640, 10996, 13745, 14896, 18620, 19243, 21992, 27490, 37240, 38486, 43984, 52231, 54980, 74480, 76972, 96215, 104462, 109960, 134701, 153944, 192430, 208924, 219920, 261155, 269402, 307888, 365617, 384860, 417848, 522310, 538804, 673505, 731234, 769720, 835696, 1044620, 1077608, 1347010, 1462468, 1539440, 1828085, 2089240, 2155216, 2559319, 2694020, 2924936, 3656170, 4178480, 5118638, 5388040, 5849872, 7312340, 10237276, 10776080, 12796595, 14624680, 20474552, 25593190, 29249360, 40949104, 51186380, 102372760, 204745520]

約数ペア:

[(1, 204745520), (2, 102372760), (4, 51186380), (5, 40949104), (7, 29249360), (8, 25593190), (10, 20474552), (14, 14624680), (16, 12796595), (19, 10776080), (20, 10237276), (28, 7312340), (35, 5849872), (38, 5388040), (40, 5118638), (49, 4178480), (56, 3656170), (70, 2924936), (76, 2694020), (80, 2559319), (95, 2155216), (98, 2089240), (112, 1828085), (133, 1539440), (140, 1462468), (152, 1347010), (190, 1077608), (196, 1044620), (245, 835696), (266, 769720), (280, 731234), (304, 673505), (380, 538804), (392, 522310), (490, 417848), (532, 384860), (560, 365617), (665, 307888), (760, 269402), (784, 261155), (931, 219920), (980, 208924), (1064, 192430), (1330, 153944), (1520, 134701), (1862, 109960), (1960, 104462), (2128, 96215), (2660, 76972), (2749, 74480), (3724, 54980), (3920, 52231), (4655, 43984), (5320, 38486), (5498, 37240), (7448, 27490), (9310, 21992), (10640, 19243), (10996, 18620), (13745, 14896)]