18338705

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 30412800

約数和(自身を除く): 12074095

約数列:

[1, 5, 7, 11, 19, 23, 35, 55, 77, 95, 109, 115, 133, 161, 209, 253, 385, 437, 545, 665, 763, 805, 1045, 1199, 1265, 1463, 1771, 2071, 2185, 2507, 3059, 3815, 4807, 5995, 7315, 8393, 8855, 10355, 12535, 14497, 15295, 17549, 22781, 24035, 27577, 33649, 41965, 47633, 72485, 87745, 113905, 137885, 159467, 168245, 193039, 238165, 333431, 523963, 797335, 965195, 1667155, 2619815, 3667741, 18338705]

約数ペア:

[(1, 18338705), (5, 3667741), (7, 2619815), (11, 1667155), (19, 965195), (23, 797335), (35, 523963), (55, 333431), (77, 238165), (95, 193039), (109, 168245), (115, 159467), (133, 137885), (161, 113905), (209, 87745), (253, 72485), (385, 47633), (437, 41965), (545, 33649), (665, 27577), (763, 24035), (805, 22781), (1045, 17549), (1199, 15295), (1265, 14497), (1463, 12535), (1771, 10355), (2071, 8855), (2185, 8393), (2507, 7315), (3059, 5995), (3815, 4807)]