289128545

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 367134720

約数和(自身を除く): 78006175

約数列:

[1, 5, 37, 73, 79, 185, 271, 365, 395, 1355, 2701, 2923, 5767, 10027, 13505, 14615, 19783, 21409, 28835, 50135, 98915, 107045, 213379, 731971, 792133, 1066895, 1562857, 3659855, 3960665, 7814285, 57825709, 289128545]

約数ペア:

[(1, 289128545), (5, 57825709), (37, 7814285), (73, 3960665), (79, 3659855), (185, 1562857), (271, 1066895), (365, 792133), (395, 731971), (1355, 213379), (2701, 107045), (2923, 98915), (5767, 50135), (10027, 28835), (13505, 21409), (14615, 19783)]