19904590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{104761}}^1$

素因数の和:104787

約数の個数: 16

約数和(自身を含む): 37714320

約数和(自身を除く): 17809730

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 104761, 209522, 523805, 1047610, 1990459, 3980918, 9952295, 19904590]

約数ペア:

[(1, 19904590), (2, 9952295), (5, 3980918), (10, 1990459), (19, 1047610), (38, 523805), (95, 209522), (190, 104761)]