18628505

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 27108864

約数和(自身を除く): 8480359

約数列:

[1, 5, 7, 23, 35, 73, 115, 161, 317, 365, 511, 805, 1585, 1679, 2219, 2555, 7291, 8395, 11095, 11753, 23141, 36455, 51037, 58765, 115705, 161987, 255185, 532243, 809935, 2661215, 3725701, 18628505]

約数ペア:

[(1, 18628505), (5, 3725701), (7, 2661215), (23, 809935), (35, 532243), (73, 255185), (115, 161987), (161, 115705), (317, 58765), (365, 51037), (511, 36455), (805, 23141), (1585, 11753), (1679, 11095), (2219, 8395), (2555, 7291)]