2019970220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{770981}}^1$

素因数の和:771121

約数の個数: 24

約数和(自身を含む): 4274324208

約数和(自身を除く): 2254353988

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 770981, 1541962, 3083924, 3854905, 7709810, 15419620, 100998511, 201997022, 403994044, 504992555, 1009985110, 2019970220]

約数ペア:

[(1, 2019970220), (2, 1009985110), (4, 504992555), (5, 403994044), (10, 201997022), (20, 100998511), (131, 15419620), (262, 7709810), (524, 3854905), (655, 3083924), (1310, 1541962), (2620, 770981)]