999051220

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{275981}}^1$

素因数の和:276171

約数の個数: 24

約数和(自身を含む): 2109606408

約数和(自身を除く): 1110555188

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 275981, 551962, 1103924, 1379905, 2759810, 5519620, 49952561, 99905122, 199810244, 249762805, 499525610, 999051220]

約数ペア:

[(1, 999051220), (2, 499525610), (4, 249762805), (5, 199810244), (10, 99905122), (20, 49952561), (181, 5519620), (362, 2759810), (724, 1379905), (905, 1103924), (1810, 551962), (3620, 275981)]