81615256

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{248827}}^1$

素因数の和:248874

約数の個数: 16

約数和(自身を含む): 156761640

約数和(自身を除く): 75146384

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 248827, 497654, 995308, 1990616, 10201907, 20403814, 40807628, 81615256]

約数ペア:

[(1, 81615256), (2, 40807628), (4, 20403814), (8, 10201907), (41, 1990616), (82, 995308), (164, 497654), (328, 248827)]