264220720

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{19777}}^1$

素因数の和:19957

約数の個数: 40

約数和(自身を含む): 618022944

約数和(自身を除く): 353802224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2672, 3340, 6680, 13360, 19777, 39554, 79108, 98885, 158216, 197770, 316432, 395540, 791080, 1582160, 3302759, 6605518, 13211036, 16513795, 26422072, 33027590, 52844144, 66055180, 132110360, 264220720]

約数ペア:

[(1, 264220720), (2, 132110360), (4, 66055180), (5, 52844144), (8, 33027590), (10, 26422072), (16, 16513795), (20, 13211036), (40, 6605518), (80, 3302759), (167, 1582160), (334, 791080), (668, 395540), (835, 316432), (1336, 197770), (1670, 158216), (2672, 98885), (3340, 79108), (6680, 39554), (13360, 19777)]