16921520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:139

約数の個数: 160

約数和(自身を含む): 50996736

約数和(自身を除く): 34075216

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 41, 44, 55, 56, 67, 70, 77, 80, 82, 88, 110, 112, 134, 140, 154, 164, 176, 205, 220, 268, 280, 287, 308, 328, 335, 385, 410, 440, 451, 469, 536, 560, 574, 616, 656, 670, 737, 770, 820, 880, 902, 938, 1072, 1148, 1232, 1340, 1435, 1474, 1540, 1640, 1804, 1876, 2255, 2296, 2345, 2680, 2747, 2870, 2948, 3080, 3157, 3280, 3608, 3685, 3752, 4510, 4592, 4690, 5159, 5360, 5494, 5740, 5896, 6160, 6314, 7216, 7370, 7504, 9020, 9380, 10318, 10988, 11480, 11792, 12628, 13735, 14740, 15785, 18040, 18760, 19229, 20636, 21976, 22960, 25256, 25795, 27470, 29480, 30217, 31570, 36080, 37520, 38458, 41272, 43952, 50512, 51590, 54940, 58960, 60434, 63140, 76916, 82544, 96145, 103180, 109880, 120868, 126280, 151085, 153832, 192290, 206360, 211519, 219760, 241736, 252560, 302170, 307664, 384580, 412720, 423038, 483472, 604340, 769160, 846076, 1057595, 1208680, 1538320, 1692152, 2115190, 2417360, 3384304, 4230380, 8460760, 16921520]

約数ペア:

[(1, 16921520), (2, 8460760), (4, 4230380), (5, 3384304), (7, 2417360), (8, 2115190), (10, 1692152), (11, 1538320), (14, 1208680), (16, 1057595), (20, 846076), (22, 769160), (28, 604340), (35, 483472), (40, 423038), (41, 412720), (44, 384580), (55, 307664), (56, 302170), (67, 252560), (70, 241736), (77, 219760), (80, 211519), (82, 206360), (88, 192290), (110, 153832), (112, 151085), (134, 126280), (140, 120868), (154, 109880), (164, 103180), (176, 96145), (205, 82544), (220, 76916), (268, 63140), (280, 60434), (287, 58960), (308, 54940), (328, 51590), (335, 50512), (385, 43952), (410, 41272), (440, 38458), (451, 37520), (469, 36080), (536, 31570), (560, 30217), (574, 29480), (616, 27470), (656, 25795), (670, 25256), (737, 22960), (770, 21976), (820, 20636), (880, 19229), (902, 18760), (938, 18040), (1072, 15785), (1148, 14740), (1232, 13735), (1340, 12628), (1435, 11792), (1474, 11480), (1540, 10988), (1640, 10318), (1804, 9380), (1876, 9020), (2255, 7504), (2296, 7370), (2345, 7216), (2680, 6314), (2747, 6160), (2870, 5896), (2948, 5740), (3080, 5494), (3157, 5360), (3280, 5159), (3608, 4690), (3685, 4592), (3752, 4510)]