920742040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{622123}}^1$

素因数の和:622171

約数の個数: 32

約数和(自身を含む): 2127664080

約数和(自身を除く): 1206922040

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 622123, 1244246, 2488492, 3110615, 4976984, 6221230, 12442460, 23018551, 24884920, 46037102, 92074204, 115092755, 184148408, 230185510, 460371020, 920742040]

約数ペア:

[(1, 920742040), (2, 460371020), (4, 230185510), (5, 184148408), (8, 115092755), (10, 92074204), (20, 46037102), (37, 24884920), (40, 23018551), (74, 12442460), (148, 6221230), (185, 4976984), (296, 3110615), (370, 2488492), (740, 1244246), (1480, 622123)]