20970080

素因数分解:

$2^5\times 5^1\times {\mathrm{131063}}^1$

素因数の和:131078

約数の個数: 24

約数和(自身を含む): 49542192

約数和(自身を除く): 28572112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131063, 262126, 524252, 655315, 1048504, 1310630, 2097008, 2621260, 4194016, 5242520, 10485040, 20970080]

約数ペア:

[(1, 20970080), (2, 10485040), (4, 5242520), (5, 4194016), (8, 2621260), (10, 2097008), (16, 1310630), (20, 1048504), (32, 655315), (40, 524252), (80, 262126), (160, 131063)]