138678478

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1\times {\mathrm{2137}}^1$

素因数の和:2667

約数の個数: 16

約数和(自身を含む): 211508064

約数和(自身を除く): 72829586

約数列:

[1, 2, 71, 142, 457, 914, 2137, 4274, 32447, 64894, 151727, 303454, 976609, 1953218, 69339239, 138678478]

約数ペア:

[(1, 138678478), (2, 69339239), (71, 1953218), (142, 976609), (457, 303454), (914, 151727), (2137, 64894), (4274, 32447)]