217656495

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:965

約数の個数: 96

約数和(自身を含む): 465454080

約数和(自身を除く): 247797585

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 41, 45, 57, 63, 95, 105, 123, 133, 171, 205, 285, 287, 315, 369, 399, 615, 665, 779, 855, 861, 887, 1197, 1435, 1845, 1995, 2337, 2583, 2661, 3895, 4305, 4435, 5453, 5985, 6209, 7011, 7983, 11685, 12915, 13305, 16359, 16853, 18627, 27265, 31045, 35055, 36367, 39915, 49077, 50559, 55881, 81795, 84265, 93135, 109101, 117971, 151677, 181835, 245385, 252795, 254569, 279405, 327303, 353913, 545505, 589855, 690973, 758385, 763707, 1061739, 1272845, 1636515, 1769565, 2072919, 2291121, 3454865, 3818535, 4836811, 5308695, 6218757, 10364595, 11455605, 14510433, 24184055, 31093785, 43531299, 72552165, 217656495]

約数ペア:

[(1, 217656495), (3, 72552165), (5, 43531299), (7, 31093785), (9, 24184055), (15, 14510433), (19, 11455605), (21, 10364595), (35, 6218757), (41, 5308695), (45, 4836811), (57, 3818535), (63, 3454865), (95, 2291121), (105, 2072919), (123, 1769565), (133, 1636515), (171, 1272845), (205, 1061739), (285, 763707), (287, 758385), (315, 690973), (369, 589855), (399, 545505), (615, 353913), (665, 327303), (779, 279405), (855, 254569), (861, 252795), (887, 245385), (1197, 181835), (1435, 151677), (1845, 117971), (1995, 109101), (2337, 93135), (2583, 84265), (2661, 81795), (3895, 55881), (4305, 50559), (4435, 49077), (5453, 39915), (5985, 36367), (6209, 35055), (7011, 31045), (7983, 27265), (11685, 18627), (12915, 16853), (13305, 16359)]