81110864

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{21211}}^1$

素因数の和:21458

約数の個数: 20

約数和(自身を含む): 157817280

約数和(自身を除く): 76706416

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 21211, 42422, 84844, 169688, 339376, 5069429, 10138858, 20277716, 40555432, 81110864]

約数ペア:

[(1, 81110864), (2, 40555432), (4, 20277716), (8, 10138858), (16, 5069429), (239, 339376), (478, 169688), (956, 84844), (1912, 42422), (3824, 21211)]