813580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2141}}^1$

素因数の和:2169

約数の個数: 24

約数和(自身を含む): 1799280

約数和(自身を除く): 985700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 2141, 4282, 8564, 10705, 21410, 40679, 42820, 81358, 162716, 203395, 406790, 813580]

約数ペア:

[(1, 813580), (2, 406790), (4, 203395), (5, 162716), (10, 81358), (19, 42820), (20, 40679), (38, 21410), (76, 10705), (95, 8564), (190, 4282), (380, 2141)]