320845280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{286469}}^1$

素因数の和:286491

約数の個数: 48

約数和(自身を含む): 866285280

約数和(自身を除く): 545440000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 286469, 572938, 1145876, 1432345, 2005283, 2291752, 2864690, 4010566, 4583504, 5729380, 8021132, 9167008, 10026415, 11458760, 16042264, 20052830, 22917520, 32084528, 40105660, 45835040, 64169056, 80211320, 160422640, 320845280]

約数ペア:

[(1, 320845280), (2, 160422640), (4, 80211320), (5, 64169056), (7, 45835040), (8, 40105660), (10, 32084528), (14, 22917520), (16, 20052830), (20, 16042264), (28, 11458760), (32, 10026415), (35, 9167008), (40, 8021132), (56, 5729380), (70, 4583504), (80, 4010566), (112, 2864690), (140, 2291752), (160, 2005283), (224, 1432345), (280, 1145876), (560, 572938), (1120, 286469)]