271489420

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{139943}}^1$

素因数の和:140049

約数の個数: 24

約数和(自身を含む): 576009504

約数和(自身を除く): 304520084

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 139943, 279886, 559772, 699715, 1399430, 2798860, 13574471, 27148942, 54297884, 67872355, 135744710, 271489420]

約数ペア:

[(1, 271489420), (2, 135744710), (4, 67872355), (5, 54297884), (10, 27148942), (20, 13574471), (97, 2798860), (194, 1399430), (388, 699715), (485, 559772), (970, 279886), (1940, 139943)]