86390005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2113}}^1$

素因数の和:2185

約数の個数: 32

約数和(自身を含む): 121461984

約数和(自身を除く): 35071979

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 221, 481, 629, 1105, 2113, 2405, 3145, 8177, 10565, 27469, 35921, 40885, 78181, 137345, 179605, 390905, 466973, 1016353, 1329077, 2334865, 5081765, 6645385, 17278001, 86390005]

約数ペア:

[(1, 86390005), (5, 17278001), (13, 6645385), (17, 5081765), (37, 2334865), (65, 1329077), (85, 1016353), (185, 466973), (221, 390905), (481, 179605), (629, 137345), (1105, 78181), (2113, 40885), (2405, 35921), (3145, 27469), (8177, 10565)]