2019915160

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{499979}}^1$

素因数の和:500091

約数の個数: 32

約数和(自身を含む): 4589816400

約数和(自身を除く): 2569901240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 499979, 999958, 1999916, 2499895, 3999832, 4999790, 9999580, 19999160, 50497879, 100995758, 201991516, 252489395, 403983032, 504978790, 1009957580, 2019915160]

約数ペア:

[(1, 2019915160), (2, 1009957580), (4, 504978790), (5, 403983032), (8, 252489395), (10, 201991516), (20, 100995758), (40, 50497879), (101, 19999160), (202, 9999580), (404, 4999790), (505, 3999832), (808, 2499895), (1010, 1999916), (2020, 999958), (4040, 499979)]