81619504

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{118633}}^1$

素因数の和:118684

約数の個数: 20

約数和(自身を含む): 161816776

約数和(自身を除く): 80197272

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 118633, 237266, 474532, 949064, 1898128, 5101219, 10202438, 20404876, 40809752, 81619504]

約数ペア:

[(1, 81619504), (2, 40809752), (4, 20404876), (8, 10202438), (16, 5101219), (43, 1898128), (86, 949064), (172, 474532), (344, 237266), (688, 118633)]