9778820

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 21385728

約数和(自身を除く): 11606908

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 101, 103, 188, 202, 206, 235, 404, 412, 470, 505, 515, 940, 1010, 1030, 2020, 2060, 4747, 4841, 9494, 9682, 10403, 18988, 19364, 20806, 23735, 24205, 41612, 47470, 48410, 52015, 94940, 96820, 104030, 208060, 488941, 977882, 1955764, 2444705, 4889410, 9778820]

約数ペア:

[(1, 9778820), (2, 4889410), (4, 2444705), (5, 1955764), (10, 977882), (20, 488941), (47, 208060), (94, 104030), (101, 96820), (103, 94940), (188, 52015), (202, 48410), (206, 47470), (235, 41612), (404, 24205), (412, 23735), (470, 20806), (505, 19364), (515, 18988), (940, 10403), (1010, 9682), (1030, 9494), (2020, 4841), (2060, 4747)]