20296450

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4561}}^1$

素因数の和:4662

約数の個数: 24

約数和(自身を含む): 38183940

約数和(自身を除く): 17887490

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 4561, 9122, 22805, 45610, 114025, 228050, 405929, 811858, 2029645, 4059290, 10148225, 20296450]

約数ペア:

[(1, 20296450), (2, 10148225), (5, 4059290), (10, 2029645), (25, 811858), (50, 405929), (89, 228050), (178, 114025), (445, 45610), (890, 22805), (2225, 9122), (4450, 4561)]