217879970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{40423}}^1$

素因数の和:40455

約数の個数: 48

約数和(自身を含む): 497700288

約数和(自身を除く): 279820318

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 5390, 40423, 80846, 202115, 282961, 404230, 444653, 565922, 889306, 1414805, 1980727, 2223265, 2829610, 3112571, 3961454, 4446530, 6225142, 9903635, 15562855, 19807270, 21787997, 31125710, 43575994, 108939985, 217879970]

約数ペア:

[(1, 217879970), (2, 108939985), (5, 43575994), (7, 31125710), (10, 21787997), (11, 19807270), (14, 15562855), (22, 9903635), (35, 6225142), (49, 4446530), (55, 3961454), (70, 3112571), (77, 2829610), (98, 2223265), (110, 1980727), (154, 1414805), (245, 889306), (385, 565922), (490, 444653), (539, 404230), (770, 282961), (1078, 202115), (2695, 80846), (5390, 40423)]