68220425

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 105326592

約数和(自身を除く): 37106167

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 157, 175, 191, 325, 455, 785, 955, 1099, 1337, 2041, 2275, 2483, 3925, 4775, 5495, 6685, 10205, 12415, 14287, 17381, 27475, 29987, 33425, 51025, 62075, 71435, 86905, 149935, 209909, 357175, 389831, 434525, 749675, 1049545, 1949155, 2728817, 5247725, 9745775, 13644085, 68220425]

約数ペア:

[(1, 68220425), (5, 13644085), (7, 9745775), (13, 5247725), (25, 2728817), (35, 1949155), (65, 1049545), (91, 749675), (157, 434525), (175, 389831), (191, 357175), (325, 209909), (455, 149935), (785, 86905), (955, 71435), (1099, 62075), (1337, 51025), (2041, 33425), (2275, 29987), (2483, 27475), (3925, 17381), (4775, 14287), (5495, 12415), (6685, 10205)]