47981720

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{4561}}^1$

素因数の和:4835

約数の個数: 32

約数和(自身を含む): 108393120

約数和(自身を除く): 60411400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 4561, 5260, 9122, 10520, 18244, 22805, 36488, 45610, 91220, 182440, 1199543, 2399086, 4798172, 5997715, 9596344, 11995430, 23990860, 47981720]

約数ペア:

[(1, 47981720), (2, 23990860), (4, 11995430), (5, 9596344), (8, 5997715), (10, 4798172), (20, 2399086), (40, 1199543), (263, 182440), (526, 91220), (1052, 45610), (1315, 36488), (2104, 22805), (2630, 18244), (4561, 10520), (5260, 9122)]