188868940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{726419}}^1$

素因数の和:726441

約数の個数: 24

約数和(自身を含む): 427134960

約数和(自身を除く): 238266020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 726419, 1452838, 2905676, 3632095, 7264190, 9443447, 14528380, 18886894, 37773788, 47217235, 94434470, 188868940]

約数ペア:

[(1, 188868940), (2, 94434470), (4, 47217235), (5, 37773788), (10, 18886894), (13, 14528380), (20, 9443447), (26, 7264190), (52, 3632095), (65, 2905676), (130, 1452838), (260, 726419)]