20960560

素因数分解:

$2^4\times 5^1\times {\mathrm{262007}}^1$

素因数の和:262020

約数の個数: 20

約数和(自身を含む): 48733488

約数和(自身を除く): 27772928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262007, 524014, 1048028, 1310035, 2096056, 2620070, 4192112, 5240140, 10480280, 20960560]

約数ペア:

[(1, 20960560), (2, 10480280), (4, 5240140), (5, 4192112), (8, 2620070), (10, 2096056), (16, 1310035), (20, 1048028), (40, 524014), (80, 262007)]