8005720

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{761}}^1$

素因数の和:1035

約数の個数: 32

約数和(自身を含む): 18105120

約数和(自身を除く): 10099400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 761, 1052, 1315, 1522, 2104, 2630, 3044, 3805, 5260, 6088, 7610, 10520, 15220, 30440, 200143, 400286, 800572, 1000715, 1601144, 2001430, 4002860, 8005720]

約数ペア:

[(1, 8005720), (2, 4002860), (4, 2001430), (5, 1601144), (8, 1000715), (10, 800572), (20, 400286), (40, 200143), (263, 30440), (526, 15220), (761, 10520), (1052, 7610), (1315, 6088), (1522, 5260), (2104, 3805), (2630, 3044)]