209438215

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{2687}}^1$

素因数の和:2847

約数の個数: 32

約数和(自身を含む): 306561024

約数和(自身を除く): 97122809

約数列:

[1, 5, 7, 17, 35, 85, 119, 131, 595, 655, 917, 2227, 2687, 4585, 11135, 13435, 15589, 18809, 45679, 77945, 94045, 228395, 319753, 351997, 1598765, 1759985, 2463979, 5983949, 12319895, 29919745, 41887643, 209438215]

約数ペア:

[(1, 209438215), (5, 41887643), (7, 29919745), (17, 12319895), (35, 5983949), (85, 2463979), (119, 1759985), (131, 1598765), (595, 351997), (655, 319753), (917, 228395), (2227, 94045), (2687, 77945), (4585, 45679), (11135, 18809), (13435, 15589)]