28452025

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 43648000

約数和(自身を除く): 15195975

約数列:

[1, 5, 7, 19, 25, 35, 43, 95, 133, 175, 199, 215, 301, 475, 665, 817, 995, 1075, 1393, 1505, 3325, 3781, 4085, 4975, 5719, 6965, 7525, 8557, 18905, 20425, 26467, 28595, 34825, 42785, 59899, 94525, 132335, 142975, 162583, 213925, 299495, 661675, 812915, 1138081, 1497475, 4064575, 5690405, 28452025]

約数ペア:

[(1, 28452025), (5, 5690405), (7, 4064575), (19, 1497475), (25, 1138081), (35, 812915), (43, 661675), (95, 299495), (133, 213925), (175, 162583), (199, 142975), (215, 132335), (301, 94525), (475, 59899), (665, 42785), (817, 34825), (995, 28595), (1075, 26467), (1393, 20425), (1505, 18905), (3325, 8557), (3781, 7525), (4085, 6965), (4975, 5719)]