77139580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{550997}}^1$

素因数の和:551013

約数の個数: 24

約数和(自身を含む): 185135328

約数和(自身を除く): 107995748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 550997, 1101994, 2203988, 2754985, 3856979, 5509970, 7713958, 11019940, 15427916, 19284895, 38569790, 77139580]

約数ペア:

[(1, 77139580), (2, 38569790), (4, 19284895), (5, 15427916), (7, 11019940), (10, 7713958), (14, 5509970), (20, 3856979), (28, 2754985), (35, 2203988), (70, 1101994), (140, 550997)]