221395525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{8623}}^1$

素因数の和:8725

約数の個数: 24

約数和(自身を含む): 299425280

約数和(自身を除く): 78029755

約数列:

[1, 5, 13, 25, 65, 79, 325, 395, 1027, 1975, 5135, 8623, 25675, 43115, 112099, 215575, 560495, 681217, 2802475, 3406085, 8855821, 17030425, 44279105, 221395525]

約数ペア:

[(1, 221395525), (5, 44279105), (13, 17030425), (25, 8855821), (65, 3406085), (79, 2802475), (325, 681217), (395, 560495), (1027, 215575), (1975, 112099), (5135, 43115), (8623, 25675)]