12871075

素因数分解:

$5^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:129

約数の個数: 48

約数和(自身を含む): 19840000

約数和(自身を除く): 6968925

約数列:

[1, 5, 7, 19, 25, 35, 49, 79, 95, 133, 175, 245, 343, 395, 475, 553, 665, 931, 1225, 1501, 1715, 1975, 2765, 3325, 3871, 4655, 6517, 7505, 8575, 10507, 13825, 19355, 23275, 27097, 32585, 37525, 52535, 73549, 96775, 135485, 162925, 262675, 367745, 514843, 677425, 1838725, 2574215, 12871075]

約数ペア:

[(1, 12871075), (5, 2574215), (7, 1838725), (19, 677425), (25, 514843), (35, 367745), (49, 262675), (79, 162925), (95, 135485), (133, 96775), (175, 73549), (245, 52535), (343, 37525), (395, 32585), (475, 27097), (553, 23275), (665, 19355), (931, 13825), (1225, 10507), (1501, 8575), (1715, 7505), (1975, 6517), (2765, 4655), (3325, 3871)]