81821792

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{196687}}^1$

素因数の和:196710

約数の個数: 24

約数和(自身を含む): 173478816

約数和(自身を除く): 91657024

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 196687, 393374, 786748, 1573496, 2556931, 3146992, 5113862, 6293984, 10227724, 20455448, 40910896, 81821792]

約数ペア:

[(1, 81821792), (2, 40910896), (4, 20455448), (8, 10227724), (13, 6293984), (16, 5113862), (26, 3146992), (32, 2556931), (52, 1573496), (104, 786748), (208, 393374), (416, 196687)]