208495

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:79

約数の個数: 24

約数和(自身を含む): 311904

約数和(自身を除く): 103409

約数列:

[1, 5, 7, 23, 35, 37, 49, 115, 161, 185, 245, 259, 805, 851, 1127, 1295, 1813, 4255, 5635, 5957, 9065, 29785, 41699, 208495]

約数ペア:

[(1, 208495), (5, 41699), (7, 29785), (23, 9065), (35, 5957), (37, 5635), (49, 4255), (115, 1813), (161, 1295), (185, 1127), (245, 851), (259, 805)]