1277376640

素因数分解:

$2^7\times 5^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:414

約数の個数: 128

約数和(自身を含む): 3130747200

約数和(自身を除く): 1853370560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 139, 160, 166, 173, 278, 320, 332, 346, 415, 556, 640, 664, 692, 695, 830, 865, 1112, 1328, 1384, 1390, 1660, 1730, 2224, 2656, 2768, 2780, 3320, 3460, 4448, 5312, 5536, 5560, 6640, 6920, 8896, 10624, 11072, 11120, 11537, 13280, 13840, 14359, 17792, 22144, 22240, 23074, 24047, 26560, 27680, 28718, 44480, 46148, 48094, 53120, 55360, 57436, 57685, 71795, 88960, 92296, 96188, 110720, 114872, 115370, 120235, 143590, 184592, 192376, 229744, 230740, 240470, 287180, 369184, 384752, 459488, 461480, 480940, 574360, 738368, 769504, 918976, 922960, 961880, 1148720, 1476736, 1539008, 1837952, 1845920, 1923760, 1995901, 2297440, 3078016, 3691840, 3847520, 3991802, 4594880, 7383680, 7695040, 7983604, 9189760, 9979505, 15390080, 15967208, 19959010, 31934416, 39918020, 63868832, 79836040, 127737664, 159672080, 255475328, 319344160, 638688320, 1277376640]

約数ペア:

[(1, 1277376640), (2, 638688320), (4, 319344160), (5, 255475328), (8, 159672080), (10, 127737664), (16, 79836040), (20, 63868832), (32, 39918020), (40, 31934416), (64, 19959010), (80, 15967208), (83, 15390080), (128, 9979505), (139, 9189760), (160, 7983604), (166, 7695040), (173, 7383680), (278, 4594880), (320, 3991802), (332, 3847520), (346, 3691840), (415, 3078016), (556, 2297440), (640, 1995901), (664, 1923760), (692, 1845920), (695, 1837952), (830, 1539008), (865, 1476736), (1112, 1148720), (1328, 961880), (1384, 922960), (1390, 918976), (1660, 769504), (1730, 738368), (2224, 574360), (2656, 480940), (2768, 461480), (2780, 459488), (3320, 384752), (3460, 369184), (4448, 287180), (5312, 240470), (5536, 230740), (5560, 229744), (6640, 192376), (6920, 184592), (8896, 143590), (10624, 120235), (11072, 115370), (11120, 114872), (11537, 110720), (13280, 96188), (13840, 92296), (14359, 88960), (17792, 71795), (22144, 57685), (22240, 57436), (23074, 55360), (24047, 53120), (26560, 48094), (27680, 46148), (28718, 44480)]