20839130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5171}}^1$

素因数の和:5222

約数の個数: 32

約数和(自身を含む): 41707008

約数和(自身を除く): 20867878

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 5171, 10342, 25855, 51710, 67223, 134446, 160301, 320602, 336115, 672230, 801505, 1603010, 2083913, 4167826, 10419565, 20839130]

約数ペア:

[(1, 20839130), (2, 10419565), (5, 4167826), (10, 2083913), (13, 1603010), (26, 801505), (31, 672230), (62, 336115), (65, 320602), (130, 160301), (155, 134446), (310, 67223), (403, 51710), (806, 25855), (2015, 10342), (4030, 5171)]