217089985

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1\times {\mathrm{563}}^1$

素因数の和:1077

約数の個数: 32

約数和(自身を含む): 311869440

約数和(自身を除く): 94779455

約数列:

[1, 5, 7, 23, 35, 115, 161, 479, 563, 805, 2395, 2815, 3353, 3941, 11017, 12949, 16765, 19705, 55085, 64745, 77119, 90643, 269677, 385595, 453215, 1348385, 1887739, 6202571, 9438695, 31012855, 43417997, 217089985]

約数ペア:

[(1, 217089985), (5, 43417997), (7, 31012855), (23, 9438695), (35, 6202571), (115, 1887739), (161, 1348385), (479, 453215), (563, 385595), (805, 269677), (2395, 90643), (2815, 77119), (3353, 64745), (3941, 55085), (11017, 19705), (12949, 16765)]