17988280

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3541}}^1$

素因数の和:3679

約数の個数: 32

約数和(自身を含む): 40803840

約数和(自身を除く): 22815560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3541, 5080, 7082, 14164, 17705, 28328, 35410, 70820, 141640, 449707, 899414, 1798828, 2248535, 3597656, 4497070, 8994140, 17988280]

約数ペア:

[(1, 17988280), (2, 8994140), (4, 4497070), (5, 3597656), (8, 2248535), (10, 1798828), (20, 899414), (40, 449707), (127, 141640), (254, 70820), (508, 35410), (635, 28328), (1016, 17705), (1270, 14164), (2540, 7082), (3541, 5080)]