8789020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 19706400

約数和(自身を除く): 10917380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 229, 380, 404, 458, 505, 916, 1010, 1145, 1919, 2020, 2290, 3838, 4351, 4580, 7676, 8702, 9595, 17404, 19190, 21755, 23129, 38380, 43510, 46258, 87020, 92516, 115645, 231290, 439451, 462580, 878902, 1757804, 2197255, 4394510, 8789020]

約数ペア:

[(1, 8789020), (2, 4394510), (4, 2197255), (5, 1757804), (10, 878902), (19, 462580), (20, 439451), (38, 231290), (76, 115645), (95, 92516), (101, 87020), (190, 46258), (202, 43510), (229, 38380), (380, 23129), (404, 21755), (458, 19190), (505, 17404), (916, 9595), (1010, 8702), (1145, 7676), (1919, 4580), (2020, 4351), (2290, 3838)]