20518790

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 17583610

約数列:

[1, 2, 5, 10, 47, 94, 149, 235, 293, 298, 470, 586, 745, 1465, 1490, 2930, 7003, 13771, 14006, 27542, 35015, 43657, 68855, 70030, 87314, 137710, 218285, 436570, 2051879, 4103758, 10259395, 20518790]

約数ペア:

[(1, 20518790), (2, 10259395), (5, 4103758), (10, 2051879), (47, 436570), (94, 218285), (149, 137710), (235, 87314), (293, 70030), (298, 68855), (470, 43657), (586, 35015), (745, 27542), (1465, 14006), (1490, 13771), (2930, 7003)]