78506540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560761}}^1$

素因数の和:560777

約数の個数: 24

約数和(自身を含む): 188416032

約数和(自身を除く): 109909492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560761, 1121522, 2243044, 2803805, 3925327, 5607610, 7850654, 11215220, 15701308, 19626635, 39253270, 78506540]

約数ペア:

[(1, 78506540), (2, 39253270), (4, 19626635), (5, 15701308), (7, 11215220), (10, 7850654), (14, 5607610), (20, 3925327), (28, 2803805), (35, 2243044), (70, 1121522), (140, 560761)]