199900550

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{853}}^1$

素因数の和:1017

約数の個数: 48

約数和(自身を含む): 384402480

約数和(自身を除く): 184501930

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 109, 215, 218, 430, 545, 853, 1075, 1090, 1706, 2150, 2725, 4265, 4687, 5450, 8530, 9374, 21325, 23435, 36679, 42650, 46870, 73358, 92977, 117175, 183395, 185954, 234350, 366790, 464885, 916975, 929770, 1833950, 2324425, 3998011, 4648850, 7996022, 19990055, 39980110, 99950275, 199900550]

約数ペア:

[(1, 199900550), (2, 99950275), (5, 39980110), (10, 19990055), (25, 7996022), (43, 4648850), (50, 3998011), (86, 2324425), (109, 1833950), (215, 929770), (218, 916975), (430, 464885), (545, 366790), (853, 234350), (1075, 185954), (1090, 183395), (1706, 117175), (2150, 92977), (2725, 73358), (4265, 46870), (4687, 42650), (5450, 36679), (8530, 23435), (9374, 21325)]