19301380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137867}}^1$

素因数の和:137883

約数の個数: 24

約数和(自身を含む): 46323648

約数和(自身を除く): 27022268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 137867, 275734, 551468, 689335, 965069, 1378670, 1930138, 2757340, 3860276, 4825345, 9650690, 19301380]

約数ペア:

[(1, 19301380), (2, 9650690), (4, 4825345), (5, 3860276), (7, 2757340), (10, 1930138), (14, 1378670), (20, 965069), (28, 689335), (35, 551468), (70, 275734), (140, 137867)]