135678416

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{197207}}^1$

素因数の和:197258

約数の個数: 20

約数和(自身を含む): 268991712

約数和(自身を除く): 133313296

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 197207, 394414, 788828, 1577656, 3155312, 8479901, 16959802, 33919604, 67839208, 135678416]

約数ペア:

[(1, 135678416), (2, 67839208), (4, 33919604), (8, 16959802), (16, 8479901), (43, 3155312), (86, 1577656), (172, 788828), (344, 394414), (688, 197207)]