8120980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 21288960

約数和(自身を除く): 13167980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 43, 70, 71, 76, 86, 95, 133, 140, 142, 172, 190, 215, 266, 284, 301, 355, 380, 430, 497, 532, 602, 665, 710, 817, 860, 994, 1204, 1330, 1349, 1420, 1505, 1634, 1988, 2485, 2660, 2698, 3010, 3053, 3268, 4085, 4970, 5396, 5719, 6020, 6106, 6745, 8170, 9443, 9940, 11438, 12212, 13490, 15265, 16340, 18886, 21371, 22876, 26980, 28595, 30530, 37772, 42742, 47215, 57190, 58007, 61060, 85484, 94430, 106855, 114380, 116014, 188860, 213710, 232028, 290035, 406049, 427420, 580070, 812098, 1160140, 1624196, 2030245, 4060490, 8120980]

約数ペア:

[(1, 8120980), (2, 4060490), (4, 2030245), (5, 1624196), (7, 1160140), (10, 812098), (14, 580070), (19, 427420), (20, 406049), (28, 290035), (35, 232028), (38, 213710), (43, 188860), (70, 116014), (71, 114380), (76, 106855), (86, 94430), (95, 85484), (133, 61060), (140, 58007), (142, 57190), (172, 47215), (190, 42742), (215, 37772), (266, 30530), (284, 28595), (301, 26980), (355, 22876), (380, 21371), (430, 18886), (497, 16340), (532, 15265), (602, 13490), (665, 12212), (710, 11438), (817, 9940), (860, 9443), (994, 8170), (1204, 6745), (1330, 6106), (1349, 6020), (1420, 5719), (1505, 5396), (1634, 4970), (1988, 4085), (2485, 3268), (2660, 3053), (2698, 3010)]