18881380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{134867}}^1$

素因数の和:134883

約数の個数: 24

約数和(自身を含む): 45315648

約数和(自身を除く): 26434268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 134867, 269734, 539468, 674335, 944069, 1348670, 1888138, 2697340, 3776276, 4720345, 9440690, 18881380]

約数ペア:

[(1, 18881380), (2, 9440690), (4, 4720345), (5, 3776276), (7, 2697340), (10, 1888138), (14, 1348670), (20, 944069), (28, 674335), (35, 539468), (70, 269734), (140, 134867)]