251717725

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{401}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 380439936

約数和(自身を除く): 128722211

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 211, 401, 425, 595, 1055, 1477, 2005, 2807, 2975, 3587, 5275, 6817, 7385, 10025, 14035, 17935, 25109, 34085, 36925, 47719, 70175, 84611, 89675, 125545, 170425, 238595, 423055, 592277, 627725, 1192975, 1438387, 2115275, 2961385, 7191935, 10068709, 14806925, 35959675, 50343545, 251717725]

約数ペア:

[(1, 251717725), (5, 50343545), (7, 35959675), (17, 14806925), (25, 10068709), (35, 7191935), (85, 2961385), (119, 2115275), (175, 1438387), (211, 1192975), (401, 627725), (425, 592277), (595, 423055), (1055, 238595), (1477, 170425), (2005, 125545), (2807, 89675), (2975, 84611), (3587, 70175), (5275, 47719), (6817, 36925), (7385, 34085), (10025, 25109), (14035, 17935)]