839889505

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4721}}^1$

素因数の和:4786

約数の個数: 64

約数和(自身を含む): 1370815488

約数和(自身を除く): 530925983

約数列:

[1, 5, 7, 13, 17, 23, 35, 65, 85, 91, 115, 119, 161, 221, 299, 391, 455, 595, 805, 1105, 1495, 1547, 1955, 2093, 2737, 4721, 5083, 7735, 10465, 13685, 23605, 25415, 33047, 35581, 61373, 80257, 108583, 165235, 177905, 306865, 401285, 429611, 542915, 561799, 760081, 1043341, 1411579, 1845911, 2148055, 2808995, 3800405, 5216705, 7057895, 7303387, 9229555, 9881053, 12921377, 23996843, 36516935, 49405265, 64606885, 119984215, 167977901, 839889505]

約数ペア:

[(1, 839889505), (5, 167977901), (7, 119984215), (13, 64606885), (17, 49405265), (23, 36516935), (35, 23996843), (65, 12921377), (85, 9881053), (91, 9229555), (115, 7303387), (119, 7057895), (161, 5216705), (221, 3800405), (299, 2808995), (391, 2148055), (455, 1845911), (595, 1411579), (805, 1043341), (1105, 760081), (1495, 561799), (1547, 542915), (1955, 429611), (2093, 401285), (2737, 306865), (4721, 177905), (5083, 165235), (7735, 108583), (10465, 80257), (13685, 61373), (23605, 35581), (25415, 33047)]