405201220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1066319}}^1$

素因数の和:1066347

約数の個数: 24

約数和(自身を含む): 895708800

約数和(自身を除く): 490507580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1066319, 2132638, 4265276, 5331595, 10663190, 20260061, 21326380, 40520122, 81040244, 101300305, 202600610, 405201220]

約数ペア:

[(1, 405201220), (2, 202600610), (4, 101300305), (5, 81040244), (10, 40520122), (19, 21326380), (20, 20260061), (38, 10663190), (76, 5331595), (95, 4265276), (190, 2132638), (380, 1066319)]