81275404

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{40883}}^1$

素因数の和:40965

約数の個数: 24

約数和(自身を含む): 164844288

約数和(自身を除く): 83568884

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 40883, 81766, 163532, 286181, 572362, 1144724, 2902693, 5805386, 11610772, 20318851, 40637702, 81275404]

約数ペア:

[(1, 81275404), (2, 40637702), (4, 20318851), (7, 11610772), (14, 5805386), (28, 2902693), (71, 1144724), (142, 572362), (284, 286181), (497, 163532), (994, 81766), (1988, 40883)]