81053968

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{117811}}^1$

素因数の和:117862

約数の個数: 20

約数和(自身を含む): 160695568

約数和(自身を除く): 79641600

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 117811, 235622, 471244, 942488, 1884976, 5065873, 10131746, 20263492, 40526984, 81053968]

約数ペア:

[(1, 81053968), (2, 40526984), (4, 20263492), (8, 10131746), (16, 5065873), (43, 1884976), (86, 942488), (172, 471244), (344, 235622), (688, 117811)]