19440280

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{2141}}^1$

素因数の和:2379

約数の個数: 32

約数和(自身を含む): 43953840

約数和(自身を除く): 24513560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2141, 2270, 4282, 4540, 8564, 9080, 10705, 17128, 21410, 42820, 85640, 486007, 972014, 1944028, 2430035, 3888056, 4860070, 9720140, 19440280]

約数ペア:

[(1, 19440280), (2, 9720140), (4, 4860070), (5, 3888056), (8, 2430035), (10, 1944028), (20, 972014), (40, 486007), (227, 85640), (454, 42820), (908, 21410), (1135, 17128), (1816, 10705), (2141, 9080), (2270, 8564), (4282, 4540)]