20009897905

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{2309}}^1\times {\mathrm{15901}}^1$

素因数の和:18324

約数の個数: 16

約数和(自身を含む): 24244189200

約数和(自身を除く): 4234291295

約数列:

[1, 5, 109, 545, 2309, 11545, 15901, 79505, 251681, 1258405, 1733209, 8666045, 36715409, 183577045, 4001979581, 20009897905]

約数ペア:

[(1, 20009897905), (5, 4001979581), (109, 183577045), (545, 36715409), (2309, 8666045), (11545, 1733209), (15901, 1258405), (79505, 251681)]