209631460

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{75407}}^1$

素因数の和:75555

約数の個数: 24

約数和(自身を含む): 443399040

約数和(自身を除く): 233767580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 75407, 150814, 301628, 377035, 754070, 1508140, 10481573, 20963146, 41926292, 52407865, 104815730, 209631460]

約数ペア:

[(1, 209631460), (2, 104815730), (4, 52407865), (5, 41926292), (10, 20963146), (20, 10481573), (139, 1508140), (278, 754070), (556, 377035), (695, 301628), (1390, 150814), (2780, 75407)]