20685662020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2003}}^1\times {\mathrm{16657}}^1$

素因数の和:18700

約数の個数: 48

約数和(自身を含む): 44866257408

約数和(自身を除く): 24180595388

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2003, 4006, 8012, 10015, 16657, 20030, 33314, 40060, 62093, 66628, 83285, 124186, 166570, 248372, 310465, 333140, 516367, 620930, 1032734, 1241860, 2065468, 2581835, 5163670, 10327340, 33363971, 66727942, 133455884, 166819855, 333639710, 667279420, 1034283101, 2068566202, 4137132404, 5171415505, 10342831010, 20685662020]

約数ペア:

[(1, 20685662020), (2, 10342831010), (4, 5171415505), (5, 4137132404), (10, 2068566202), (20, 1034283101), (31, 667279420), (62, 333639710), (124, 166819855), (155, 133455884), (310, 66727942), (620, 33363971), (2003, 10327340), (4006, 5163670), (8012, 2581835), (10015, 2065468), (16657, 1241860), (20030, 1032734), (33314, 620930), (40060, 516367), (62093, 333140), (66628, 310465), (83285, 248372), (124186, 166570)]