21088896040

素因数分解:

$2^3\times 5^1\times {\mathrm{1597}}^1\times {\mathrm{330133}}^1$

素因数の和:331741

約数の個数: 32

約数和(自身を含む): 47479871880

約数和(自身を除く): 26390975840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1597, 3194, 6388, 7985, 12776, 15970, 31940, 63880, 330133, 660266, 1320532, 1650665, 2641064, 3301330, 6602660, 13205320, 527222401, 1054444802, 2108889604, 2636112005, 4217779208, 5272224010, 10544448020, 21088896040]

約数ペア:

[(1, 21088896040), (2, 10544448020), (4, 5272224010), (5, 4217779208), (8, 2636112005), (10, 2108889604), (20, 1054444802), (40, 527222401), (1597, 13205320), (3194, 6602660), (6388, 3301330), (7985, 2641064), (12776, 1650665), (15970, 1320532), (31940, 660266), (63880, 330133)]