2020993840

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{250123}}^1$

素因数の和:250237

約数の個数: 40

約数和(自身を含む): 4745352528

約数和(自身を除く): 2724358688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 250123, 500246, 1000492, 1250615, 2000984, 2501230, 4001968, 5002460, 10004920, 20009840, 25262423, 50524846, 101049692, 126312115, 202099384, 252624230, 404198768, 505248460, 1010496920, 2020993840]

約数ペア:

[(1, 2020993840), (2, 1010496920), (4, 505248460), (5, 404198768), (8, 252624230), (10, 202099384), (16, 126312115), (20, 101049692), (40, 50524846), (80, 25262423), (101, 20009840), (202, 10004920), (404, 5002460), (505, 4001968), (808, 2501230), (1010, 2000984), (1616, 1250615), (2020, 1000492), (4040, 500246), (8080, 250123)]