640378704

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{349}}^1$

素因数の和:537

約数の個数: 160

約数和(自身を含む): 1955430400

約数和(自身を除く): 1315051696

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 43, 48, 56, 84, 86, 112, 127, 129, 168, 172, 254, 258, 301, 336, 344, 349, 381, 508, 516, 602, 688, 698, 762, 889, 903, 1016, 1032, 1047, 1204, 1396, 1524, 1778, 1806, 2032, 2064, 2094, 2408, 2443, 2667, 2792, 3048, 3556, 3612, 4188, 4816, 4886, 5334, 5461, 5584, 6096, 7112, 7224, 7329, 8376, 9772, 10668, 10922, 14224, 14448, 14658, 15007, 16383, 16752, 19544, 21336, 21844, 29316, 30014, 32766, 38227, 39088, 42672, 43688, 44323, 45021, 58632, 60028, 65532, 76454, 87376, 88646, 90042, 105049, 114681, 117264, 120056, 131064, 132969, 152908, 177292, 180084, 210098, 229362, 240112, 262128, 265938, 305816, 310261, 315147, 354584, 360168, 420196, 458724, 531876, 611632, 620522, 630294, 709168, 720336, 840392, 917448, 930783, 1063752, 1241044, 1260588, 1680784, 1834896, 1861566, 1905889, 2127504, 2482088, 2521176, 3723132, 3811778, 4964176, 5042352, 5717667, 7446264, 7623556, 11435334, 13341223, 14892528, 15247112, 22870668, 26682446, 30494224, 40023669, 45741336, 53364892, 80047338, 91482672, 106729784, 160094676, 213459568, 320189352, 640378704]

約数ペア:

[(1, 640378704), (2, 320189352), (3, 213459568), (4, 160094676), (6, 106729784), (7, 91482672), (8, 80047338), (12, 53364892), (14, 45741336), (16, 40023669), (21, 30494224), (24, 26682446), (28, 22870668), (42, 15247112), (43, 14892528), (48, 13341223), (56, 11435334), (84, 7623556), (86, 7446264), (112, 5717667), (127, 5042352), (129, 4964176), (168, 3811778), (172, 3723132), (254, 2521176), (258, 2482088), (301, 2127504), (336, 1905889), (344, 1861566), (349, 1834896), (381, 1680784), (508, 1260588), (516, 1241044), (602, 1063752), (688, 930783), (698, 917448), (762, 840392), (889, 720336), (903, 709168), (1016, 630294), (1032, 620522), (1047, 611632), (1204, 531876), (1396, 458724), (1524, 420196), (1778, 360168), (1806, 354584), (2032, 315147), (2064, 310261), (2094, 305816), (2408, 265938), (2443, 262128), (2667, 240112), (2792, 229362), (3048, 210098), (3556, 180084), (3612, 177292), (4188, 152908), (4816, 132969), (4886, 131064), (5334, 120056), (5461, 117264), (5584, 114681), (6096, 105049), (7112, 90042), (7224, 88646), (7329, 87376), (8376, 76454), (9772, 65532), (10668, 60028), (10922, 58632), (14224, 45021), (14448, 44323), (14658, 43688), (15007, 42672), (16383, 39088), (16752, 38227), (19544, 32766), (21336, 30014), (21844, 29316)]