138085180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{347}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 295184736

約数和(自身を除く): 157099556

約数列:

[1, 2, 4, 5, 10, 20, 101, 197, 202, 347, 394, 404, 505, 694, 788, 985, 1010, 1388, 1735, 1970, 2020, 3470, 3940, 6940, 19897, 35047, 39794, 68359, 70094, 79588, 99485, 136718, 140188, 175235, 198970, 273436, 341795, 350470, 397940, 683590, 700940, 1367180, 6904259, 13808518, 27617036, 34521295, 69042590, 138085180]

約数ペア:

[(1, 138085180), (2, 69042590), (4, 34521295), (5, 27617036), (10, 13808518), (20, 6904259), (101, 1367180), (197, 700940), (202, 683590), (347, 397940), (394, 350470), (404, 341795), (505, 273436), (694, 198970), (788, 175235), (985, 140188), (1010, 136718), (1388, 99485), (1735, 79588), (1970, 70094), (2020, 68359), (3470, 39794), (3940, 35047), (6940, 19897)]