11990615

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 18946368

約数和(自身を除く): 6955753

約数列:

[1, 5, 7, 13, 19, 35, 65, 73, 91, 95, 133, 247, 361, 365, 455, 511, 665, 949, 1235, 1387, 1729, 1805, 2527, 2555, 4693, 4745, 6643, 6935, 8645, 9709, 12635, 18031, 23465, 26353, 32851, 33215, 48545, 90155, 126217, 131765, 164255, 184471, 342589, 631085, 922355, 1712945, 2398123, 11990615]

約数ペア:

[(1, 11990615), (5, 2398123), (7, 1712945), (13, 922355), (19, 631085), (35, 342589), (65, 184471), (73, 164255), (91, 131765), (95, 126217), (133, 90155), (247, 48545), (361, 33215), (365, 32851), (455, 26353), (511, 23465), (665, 18031), (949, 12635), (1235, 9709), (1387, 8645), (1729, 6935), (1805, 6643), (2527, 4745), (2555, 4693)]