128787670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{8423}}^1$

素因数の和:8580

約数の個数: 32

約数和(自身を含む): 254741760

約数和(自身を除く): 125954090

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1390, 1529, 3058, 7645, 8423, 15290, 16846, 42115, 84230, 92653, 185306, 463265, 926530, 1170797, 2341594, 5853985, 11707970, 12878767, 25757534, 64393835, 128787670]

約数ペア:

[(1, 128787670), (2, 64393835), (5, 25757534), (10, 12878767), (11, 11707970), (22, 5853985), (55, 2341594), (110, 1170797), (139, 926530), (278, 463265), (695, 185306), (1390, 92653), (1529, 84230), (3058, 42115), (7645, 16846), (8423, 15290)]