81205964

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{54721}}^1$

素因数の和:54785

約数の個数: 24

約数和(自身を含む): 165479328

約数和(自身を除く): 84273364

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 54721, 109442, 218884, 383047, 766094, 1532188, 2900213, 5800426, 11600852, 20301491, 40602982, 81205964]

約数ペア:

[(1, 81205964), (2, 40602982), (4, 20301491), (7, 11600852), (14, 5800426), (28, 2900213), (53, 1532188), (106, 766094), (212, 383047), (371, 218884), (742, 109442), (1484, 54721)]