18406561768

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1901}}^1\times {\mathrm{4021}}^1$

素因数の和:5978

約数の個数: 64

約数和(自身を含む): 40391176320

約数和(自身を除く): 21984614552

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 1901, 2408, 3802, 4021, 7604, 8042, 13307, 15208, 16084, 26614, 28147, 32168, 53228, 56294, 81743, 106456, 112588, 163486, 172903, 225176, 326972, 345806, 572201, 653944, 691612, 1144402, 1210321, 1383224, 2288804, 2420642, 4577608, 4841284, 7643921, 9682568, 15287842, 30575684, 53507447, 61151368, 107014894, 214029788, 328688603, 428059576, 657377206, 1314754412, 2300820221, 2629508824, 4601640442, 9203280884, 18406561768]

約数ペア:

[(1, 18406561768), (2, 9203280884), (4, 4601640442), (7, 2629508824), (8, 2300820221), (14, 1314754412), (28, 657377206), (43, 428059576), (56, 328688603), (86, 214029788), (172, 107014894), (301, 61151368), (344, 53507447), (602, 30575684), (1204, 15287842), (1901, 9682568), (2408, 7643921), (3802, 4841284), (4021, 4577608), (7604, 2420642), (8042, 2288804), (13307, 1383224), (15208, 1210321), (16084, 1144402), (26614, 691612), (28147, 653944), (32168, 572201), (53228, 345806), (56294, 326972), (81743, 225176), (106456, 172903), (112588, 163486)]