78486940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560621}}^1$

素因数の和:560637

約数の個数: 24

約数和(自身を含む): 188368992

約数和(自身を除く): 109882052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560621, 1121242, 2242484, 2803105, 3924347, 5606210, 7848694, 11212420, 15697388, 19621735, 39243470, 78486940]

約数ペア:

[(1, 78486940), (2, 39243470), (4, 19621735), (5, 15697388), (7, 11212420), (10, 7848694), (14, 5606210), (20, 3924347), (28, 2803105), (35, 2242484), (70, 1121242), (140, 560621)]