172904165

素因数分解:

$5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{22153}}^1$

素因数の和:22388

約数の個数: 16

約数和(自身を含む): 238199808

約数和(自身を除く): 65295643

約数列:

[1, 5, 7, 35, 223, 1115, 1561, 7805, 22153, 110765, 155071, 775355, 4940119, 24700595, 34580833, 172904165]

約数ペア:

[(1, 172904165), (5, 34580833), (7, 24700595), (35, 4940119), (223, 775355), (1115, 155071), (1561, 110765), (7805, 22153)]