20213360

素因数分解:

$2^4\times 5^1\times {\mathrm{252667}}^1$

素因数の和:252680

約数の個数: 20

約数和(自身を含む): 46996248

約数和(自身を除く): 26782888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252667, 505334, 1010668, 1263335, 2021336, 2526670, 4042672, 5053340, 10106680, 20213360]

約数ペア:

[(1, 20213360), (2, 10106680), (4, 5053340), (5, 4042672), (8, 2526670), (10, 2021336), (16, 1263335), (20, 1010668), (40, 505334), (80, 252667)]