20565757232

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{215051}}^1$

素因数の和:215241

約数の個数: 40

約数和(自身を含む): 41066329920

約数和(自身を除く): 20500572688

約数列:

[1, 2, 4, 8, 16, 43, 86, 139, 172, 278, 344, 556, 688, 1112, 2224, 5977, 11954, 23908, 47816, 95632, 215051, 430102, 860204, 1720408, 3440816, 9247193, 18494386, 29892089, 36988772, 59784178, 73977544, 119568356, 147955088, 239136712, 478273424, 1285359827, 2570719654, 5141439308, 10282878616, 20565757232]

約数ペア:

[(1, 20565757232), (2, 10282878616), (4, 5141439308), (8, 2570719654), (16, 1285359827), (43, 478273424), (86, 239136712), (139, 147955088), (172, 119568356), (278, 73977544), (344, 59784178), (556, 36988772), (688, 29892089), (1112, 18494386), (2224, 9247193), (5977, 3440816), (11954, 1720408), (23908, 860204), (47816, 430102), (95632, 215051)]