551090920

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{126397}}^1$

素因数の和:126517

約数の個数: 32

約数和(自身を含む): 1251340200

約数和(自身を除く): 700249280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 126397, 252794, 505588, 631985, 1011176, 1263970, 2527940, 5055880, 13777273, 27554546, 55109092, 68886365, 110218184, 137772730, 275545460, 551090920]

約数ペア:

[(1, 551090920), (2, 275545460), (4, 137772730), (5, 110218184), (8, 68886365), (10, 55109092), (20, 27554546), (40, 13777273), (109, 5055880), (218, 2527940), (436, 1263970), (545, 1011176), (872, 631985), (1090, 505588), (2180, 252794), (4360, 126397)]