164089720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{95401}}^1$

素因数の和:95455

約数の個数: 32

約数和(自身を含む): 377791920

約数和(自身を除く): 213702200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 95401, 190802, 381604, 477005, 763208, 954010, 1908020, 3816040, 4102243, 8204486, 16408972, 20511215, 32817944, 41022430, 82044860, 164089720]

約数ペア:

[(1, 164089720), (2, 82044860), (4, 41022430), (5, 32817944), (8, 20511215), (10, 16408972), (20, 8204486), (40, 4102243), (43, 3816040), (86, 1908020), (172, 954010), (215, 763208), (344, 477005), (430, 381604), (860, 190802), (1720, 95401)]