20824540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{919}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 48222720

約数和(自身を除く): 27398180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 919, 1030, 1133, 1838, 2060, 2266, 3676, 4532, 4595, 5665, 9190, 10109, 11330, 18380, 20218, 22660, 40436, 50545, 94657, 101090, 189314, 202180, 378628, 473285, 946570, 1041227, 1893140, 2082454, 4164908, 5206135, 10412270, 20824540]

約数ペア:

[(1, 20824540), (2, 10412270), (4, 5206135), (5, 4164908), (10, 2082454), (11, 1893140), (20, 1041227), (22, 946570), (44, 473285), (55, 378628), (103, 202180), (110, 189314), (206, 101090), (220, 94657), (412, 50545), (515, 40436), (919, 22660), (1030, 20218), (1133, 18380), (1838, 11330), (2060, 10109), (2266, 9190), (3676, 5665), (4532, 4595)]