7272080

素因数分解:

$2^4\times 5^1\times {\mathrm{90901}}^1$

素因数の和:90914

約数の個数: 20

約数和(自身を含む): 16907772

約数和(自身を除く): 9635692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 90901, 181802, 363604, 454505, 727208, 909010, 1454416, 1818020, 3636040, 7272080]

約数ペア:

[(1, 7272080), (2, 3636040), (4, 1818020), (5, 1454416), (8, 909010), (10, 727208), (16, 454505), (20, 363604), (40, 181802), (80, 90901)]