637291220

素因数分解:

$2^2\times 5^1\times {\mathrm{1181}}^1\times {\mathrm{26981}}^1$

素因数の和:28171

約数の個数: 24

約数和(自身を含む): 1339494408

約数和(自身を除く): 702203188

約数列:

[1, 2, 4, 5, 10, 20, 1181, 2362, 4724, 5905, 11810, 23620, 26981, 53962, 107924, 134905, 269810, 539620, 31864561, 63729122, 127458244, 159322805, 318645610, 637291220]

約数ペア:

[(1, 637291220), (2, 318645610), (4, 159322805), (5, 127458244), (10, 63729122), (20, 31864561), (1181, 539620), (2362, 269810), (4724, 134905), (5905, 107924), (11810, 53962), (23620, 26981)]