1801485

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:87

約数の個数: 72

約数和(自身を含む): 3912480

約数和(自身を除く): 2110995

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 43, 45, 49, 57, 63, 95, 105, 129, 133, 147, 171, 215, 245, 285, 301, 315, 387, 399, 441, 645, 665, 735, 817, 855, 903, 931, 1197, 1505, 1935, 1995, 2107, 2205, 2451, 2709, 2793, 4085, 4515, 4655, 5719, 5985, 6321, 7353, 8379, 10535, 12255, 13545, 13965, 17157, 18963, 28595, 31605, 36765, 40033, 41895, 51471, 85785, 94815, 120099, 200165, 257355, 360297, 600495, 1801485]

約数ペア:

[(1, 1801485), (3, 600495), (5, 360297), (7, 257355), (9, 200165), (15, 120099), (19, 94815), (21, 85785), (35, 51471), (43, 41895), (45, 40033), (49, 36765), (57, 31605), (63, 28595), (95, 18963), (105, 17157), (129, 13965), (133, 13545), (147, 12255), (171, 10535), (215, 8379), (245, 7353), (285, 6321), (301, 5985), (315, 5719), (387, 4655), (399, 4515), (441, 4085), (645, 2793), (665, 2709), (735, 2451), (817, 2205), (855, 2107), (903, 1995), (931, 1935), (1197, 1505)]