31430805

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 60480000

約数和(自身を除く): 29049195

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 49, 105, 123, 147, 149, 205, 245, 287, 343, 447, 615, 735, 745, 861, 1029, 1043, 1435, 1715, 2009, 2235, 3129, 4305, 5145, 5215, 6027, 6109, 7301, 10045, 14063, 15645, 18327, 21903, 30135, 30545, 36505, 42189, 42763, 51107, 70315, 91635, 109515, 128289, 153321, 210945, 213815, 255535, 299341, 641445, 766605, 898023, 1496705, 2095387, 4490115, 6286161, 10476935, 31430805]

約数ペア:

[(1, 31430805), (3, 10476935), (5, 6286161), (7, 4490115), (15, 2095387), (21, 1496705), (35, 898023), (41, 766605), (49, 641445), (105, 299341), (123, 255535), (147, 213815), (149, 210945), (205, 153321), (245, 128289), (287, 109515), (343, 91635), (447, 70315), (615, 51107), (735, 42763), (745, 42189), (861, 36505), (1029, 30545), (1043, 30135), (1435, 21903), (1715, 18327), (2009, 15645), (2235, 14063), (3129, 10045), (4305, 7301), (5145, 6109), (5215, 6027)]