78836240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140779}}^1$

素因数の和:140799

約数の個数: 40

約数和(自身を含む): 209480640

約数和(自身を除く): 130644400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140779, 281558, 563116, 703895, 985453, 1126232, 1407790, 1970906, 2252464, 2815580, 3941812, 4927265, 5631160, 7883624, 9854530, 11262320, 15767248, 19709060, 39418120, 78836240]

約数ペア:

[(1, 78836240), (2, 39418120), (4, 19709060), (5, 15767248), (7, 11262320), (8, 9854530), (10, 7883624), (14, 5631160), (16, 4927265), (20, 3941812), (28, 2815580), (35, 2252464), (40, 1970906), (56, 1407790), (70, 1126232), (80, 985453), (112, 703895), (140, 563116), (280, 281558), (560, 140779)]