217857535

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{1523}}^1$

素因数の和:1663

約数の個数: 32

約数和(自身を含む): 308408832

約数和(自身を除く): 90551297

約数列:

[1, 5, 7, 35, 61, 67, 305, 335, 427, 469, 1523, 2135, 2345, 4087, 7615, 10661, 20435, 28609, 53305, 92903, 102041, 143045, 464515, 510205, 650321, 714287, 3251605, 3571435, 6224501, 31122505, 43571507, 217857535]

約数ペア:

[(1, 217857535), (5, 43571507), (7, 31122505), (35, 6224501), (61, 3571435), (67, 3251605), (305, 714287), (335, 650321), (427, 510205), (469, 464515), (1523, 143045), (2135, 102041), (2345, 92903), (4087, 53305), (7615, 28609), (10661, 20435)]