81321016

素因数分解:

$2^3\times 7^1\times {\mathrm{503}}^1\times {\mathrm{2887}}^1$

素因数の和:3403

約数の個数: 32

約数和(自身を含む): 174666240

約数和(自身を除く): 93345224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 503, 1006, 2012, 2887, 3521, 4024, 5774, 7042, 11548, 14084, 20209, 23096, 28168, 40418, 80836, 161672, 1452161, 2904322, 5808644, 10165127, 11617288, 20330254, 40660508, 81321016]

約数ペア:

[(1, 81321016), (2, 40660508), (4, 20330254), (7, 11617288), (8, 10165127), (14, 5808644), (28, 2904322), (56, 1452161), (503, 161672), (1006, 80836), (2012, 40418), (2887, 28168), (3521, 23096), (4024, 20209), (5774, 14084), (7042, 11548)]