215948005

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{3023}}^1$

素因数の和:3205

約数の個数: 32

約数和(自身を含む): 321076224

約数和(自身を除く): 105128219

約数列:

[1, 5, 7, 13, 35, 65, 91, 157, 455, 785, 1099, 2041, 3023, 5495, 10205, 14287, 15115, 21161, 39299, 71435, 105805, 196495, 275093, 474611, 1375465, 2373055, 3322277, 6169943, 16611385, 30849715, 43189601, 215948005]

約数ペア:

[(1, 215948005), (5, 43189601), (7, 30849715), (13, 16611385), (35, 6169943), (65, 3322277), (91, 2373055), (157, 1375465), (455, 474611), (785, 275093), (1099, 196495), (2041, 105805), (3023, 71435), (5495, 39299), (10205, 21161), (14287, 15115)]