81017708

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{1487}}^1$

素因数の和:1801

約数の個数: 24

約数和(自身を含む): 145115712

約数和(自身を除く): 64098004

約数列:

[1, 2, 4, 53, 106, 212, 257, 514, 1028, 1487, 2974, 5948, 13621, 27242, 54484, 78811, 157622, 315244, 382159, 764318, 1528636, 20254427, 40508854, 81017708]

約数ペア:

[(1, 81017708), (2, 40508854), (4, 20254427), (53, 1528636), (106, 764318), (212, 382159), (257, 315244), (514, 157622), (1028, 78811), (1487, 54484), (2974, 27242), (5948, 13621)]