81539152

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{21323}}^1$

素因数の和:21570

約数の個数: 20

約数和(自身を含む): 158650560

約数和(自身を除く): 77111408

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 21323, 42646, 85292, 170584, 341168, 5096197, 10192394, 20384788, 40769576, 81539152]

約数ペア:

[(1, 81539152), (2, 40769576), (4, 20384788), (8, 10192394), (16, 5096197), (239, 341168), (478, 170584), (956, 85292), (1912, 42646), (3824, 21323)]