2905902860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{423601}}^1$

素因数の和:423631

約数の個数: 48

約数和(自身を含む): 7116513600

約数和(自身を除く): 4210610740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 423601, 847202, 1694404, 2118005, 2965207, 4236010, 5930414, 8472020, 11860828, 14826035, 20756449, 29652070, 41512898, 59304140, 83025796, 103782245, 145295143, 207564490, 290590286, 415128980, 581180572, 726475715, 1452951430, 2905902860]

約数ペア:

[(1, 2905902860), (2, 1452951430), (4, 726475715), (5, 581180572), (7, 415128980), (10, 290590286), (14, 207564490), (20, 145295143), (28, 103782245), (35, 83025796), (49, 59304140), (70, 41512898), (98, 29652070), (140, 20756449), (196, 14826035), (245, 11860828), (343, 8472020), (490, 5930414), (686, 4236010), (980, 2965207), (1372, 2118005), (1715, 1694404), (3430, 847202), (6860, 423601)]