81239704

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{111593}}^1$

素因数の和:111619

約数の個数: 32

約数和(自身を含む): 187477920

約数和(自身を除く): 106238216

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 111593, 223186, 446372, 781151, 892744, 1450709, 1562302, 2901418, 3124604, 5802836, 6249208, 10154963, 11605672, 20309926, 40619852, 81239704]

約数ペア:

[(1, 81239704), (2, 40619852), (4, 20309926), (7, 11605672), (8, 10154963), (13, 6249208), (14, 5802836), (26, 3124604), (28, 2901418), (52, 1562302), (56, 1450709), (91, 892744), (104, 781151), (182, 446372), (364, 223186), (728, 111593)]