131566785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 253366272

約数和(自身を除く): 121799487

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 157, 161, 345, 347, 471, 483, 785, 805, 1041, 1099, 1735, 2355, 2415, 2429, 3297, 3611, 5205, 5495, 7287, 7981, 10833, 12145, 16485, 18055, 23943, 25277, 36435, 39905, 54165, 54479, 55867, 75831, 119715, 126385, 163437, 167601, 272395, 279335, 379155, 381353, 817185, 838005, 1144059, 1253017, 1906765, 3759051, 5720295, 6265085, 8771119, 18795255, 26313357, 43855595, 131566785]

約数ペア:

[(1, 131566785), (3, 43855595), (5, 26313357), (7, 18795255), (15, 8771119), (21, 6265085), (23, 5720295), (35, 3759051), (69, 1906765), (105, 1253017), (115, 1144059), (157, 838005), (161, 817185), (345, 381353), (347, 379155), (471, 279335), (483, 272395), (785, 167601), (805, 163437), (1041, 126385), (1099, 119715), (1735, 75831), (2355, 55867), (2415, 54479), (2429, 54165), (3297, 39905), (3611, 36435), (5205, 25277), (5495, 23943), (7287, 18055), (7981, 16485), (10833, 12145)]