6800000020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{719}}^1\times {\mathrm{42989}}^1$

素因数の和:43728

約数の個数: 48

約数和(自身を含む): 15600211200

約数和(自身を除く): 8800211180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 719, 1438, 2876, 3595, 7190, 7909, 14380, 15818, 31636, 39545, 42989, 79090, 85978, 158180, 171956, 214945, 429890, 472879, 859780, 945758, 1891516, 2364395, 4728790, 9457580, 30909091, 61818182, 123636364, 154545455, 309090910, 340000001, 618181820, 680000002, 1360000004, 1700000005, 3400000010, 6800000020]

約数ペア:

[(1, 6800000020), (2, 3400000010), (4, 1700000005), (5, 1360000004), (10, 680000002), (11, 618181820), (20, 340000001), (22, 309090910), (44, 154545455), (55, 123636364), (110, 61818182), (220, 30909091), (719, 9457580), (1438, 4728790), (2876, 2364395), (3595, 1891516), (7190, 945758), (7909, 859780), (14380, 472879), (15818, 429890), (31636, 214945), (39545, 171956), (42989, 158180), (79090, 85978)]