311995180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{2281}}^1$

素因数の和:3274

約数の個数: 48

約数和(自身を含む): 749883456

約数和(自身を除く): 437888276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 977, 1954, 2281, 3908, 4562, 4885, 6839, 9124, 9770, 11405, 13678, 15967, 19540, 22810, 27356, 31934, 34195, 45620, 63868, 68390, 79835, 136780, 159670, 319340, 2228537, 4457074, 8914148, 11142685, 15599759, 22285370, 31199518, 44570740, 62399036, 77998795, 155997590, 311995180]

約数ペア:

[(1, 311995180), (2, 155997590), (4, 77998795), (5, 62399036), (7, 44570740), (10, 31199518), (14, 22285370), (20, 15599759), (28, 11142685), (35, 8914148), (70, 4457074), (140, 2228537), (977, 319340), (1954, 159670), (2281, 136780), (3908, 79835), (4562, 68390), (4885, 63868), (6839, 45620), (9124, 34195), (9770, 31934), (11405, 27356), (13678, 22810), (15967, 19540)]