81700724

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{39971}}^1$

素因数の和:40055

約数の個数: 24

約数和(自身を含む): 165643968

約数和(自身を除く): 83943244

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 39971, 79942, 159884, 279797, 559594, 1119188, 2917883, 5835766, 11671532, 20425181, 40850362, 81700724]

約数ペア:

[(1, 81700724), (2, 40850362), (4, 20425181), (7, 11671532), (14, 5835766), (28, 2917883), (73, 1119188), (146, 559594), (292, 279797), (511, 159884), (1022, 79942), (2044, 39971)]