216656720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{386887}}^1$

素因数の和:386907

約数の個数: 40

約数和(自身を含む): 575689344

約数和(自身を除く): 359032624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 386887, 773774, 1547548, 1934435, 2708209, 3095096, 3868870, 5416418, 6190192, 7737740, 10832836, 13541045, 15475480, 21665672, 27082090, 30950960, 43331344, 54164180, 108328360, 216656720]

約数ペア:

[(1, 216656720), (2, 108328360), (4, 54164180), (5, 43331344), (7, 30950960), (8, 27082090), (10, 21665672), (14, 15475480), (16, 13541045), (20, 10832836), (28, 7737740), (35, 6190192), (40, 5416418), (56, 3868870), (70, 3095096), (80, 2708209), (112, 1934435), (140, 1547548), (280, 773774), (560, 386887)]