181690280

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{42451}}^1$

素因数の和:42569

約数の個数: 32

約数和(自身を含む): 412633440

約数和(自身を除く): 230943160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 42451, 84902, 169804, 212255, 339608, 424510, 849020, 1698040, 4542257, 9084514, 18169028, 22711285, 36338056, 45422570, 90845140, 181690280]

約数ペア:

[(1, 181690280), (2, 90845140), (4, 45422570), (5, 36338056), (8, 22711285), (10, 18169028), (20, 9084514), (40, 4542257), (107, 1698040), (214, 849020), (428, 424510), (535, 339608), (856, 212255), (1070, 169804), (2140, 84902), (4280, 42451)]