281990080

素因数分解:

$2^6\times 5^1\times {\mathrm{881219}}^1$

素因数の和:881236

約数の個数: 28

約数和(自身を含む): 671489640

約数和(自身を除く): 389499560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 881219, 1762438, 3524876, 4406095, 7049752, 8812190, 14099504, 17624380, 28199008, 35248760, 56398016, 70497520, 140995040, 281990080]

約数ペア:

[(1, 281990080), (2, 140995040), (4, 70497520), (5, 56398016), (8, 35248760), (10, 28199008), (16, 17624380), (20, 14099504), (32, 8812190), (40, 7049752), (64, 4406095), (80, 3524876), (160, 1762438), (320, 881219)]