20899681460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149283439}}^1$

素因数の和:149283455

約数の個数: 24

約数和(自身を含む): 50159235840

約数和(自身を除く): 29259554380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149283439, 298566878, 597133756, 746417195, 1044984073, 1492834390, 2089968146, 2985668780, 4179936292, 5224920365, 10449840730, 20899681460]

約数ペア:

[(1, 20899681460), (2, 10449840730), (4, 5224920365), (5, 4179936292), (7, 2985668780), (10, 2089968146), (14, 1492834390), (20, 1044984073), (28, 746417195), (35, 597133756), (70, 298566878), (140, 149283439)]