12990490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{68371}}^1$

素因数の和:68397

約数の個数: 16

約数和(自身を含む): 24613920

約数和(自身を除く): 11623430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 68371, 136742, 341855, 683710, 1299049, 2598098, 6495245, 12990490]

約数ペア:

[(1, 12990490), (2, 6495245), (5, 2598098), (10, 1299049), (19, 683710), (38, 341855), (95, 136742), (190, 68371)]