17808980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127207}}^1$

素因数の和:127223

約数の個数: 24

約数和(自身を含む): 42741888

約数和(自身を除く): 24932908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 127207, 254414, 508828, 636035, 890449, 1272070, 1780898, 2544140, 3561796, 4452245, 8904490, 17808980]

約数ペア:

[(1, 17808980), (2, 8904490), (4, 4452245), (5, 3561796), (7, 2544140), (10, 1780898), (14, 1272070), (20, 890449), (28, 636035), (35, 508828), (70, 254414), (140, 127207)]