851807425

素因数分解:

$5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 1277555136

約数和(自身を除く): 425747711

約数列:

[1, 5, 7, 25, 35, 43, 49, 103, 157, 175, 215, 245, 301, 515, 721, 785, 1075, 1099, 1225, 1505, 2107, 2575, 3605, 3925, 4429, 5047, 5495, 6751, 7525, 7693, 10535, 16171, 18025, 22145, 25235, 27475, 31003, 33755, 38465, 47257, 52675, 80855, 110725, 113197, 126175, 155015, 168775, 192325, 217021, 236285, 330799, 404275, 565985, 695353, 775075, 792379, 1085105, 1181425, 1653995, 2829925, 3476765, 3961895, 4867471, 5425525, 8269975, 17383825, 19809475, 24337355, 34072297, 121686775, 170361485, 851807425]

約数ペア:

[(1, 851807425), (5, 170361485), (7, 121686775), (25, 34072297), (35, 24337355), (43, 19809475), (49, 17383825), (103, 8269975), (157, 5425525), (175, 4867471), (215, 3961895), (245, 3476765), (301, 2829925), (515, 1653995), (721, 1181425), (785, 1085105), (1075, 792379), (1099, 775075), (1225, 695353), (1505, 565985), (2107, 404275), (2575, 330799), (3605, 236285), (3925, 217021), (4429, 192325), (5047, 168775), (5495, 155015), (6751, 126175), (7525, 113197), (7693, 110725), (10535, 80855), (16171, 52675), (18025, 47257), (22145, 38465), (25235, 33755), (27475, 31003)]