809320180

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1\times {\mathrm{743}}^1$

素因数の和:1368

約数の個数: 48

約数和(自身を含む): 1721139840

約数和(自身を除く): 911819660

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 509, 535, 743, 1018, 1070, 1486, 2036, 2140, 2545, 2972, 3715, 5090, 7430, 10180, 14860, 54463, 79501, 108926, 159002, 217852, 272315, 318004, 378187, 397505, 544630, 756374, 795010, 1089260, 1512748, 1590020, 1890935, 3781870, 7563740, 40466009, 80932018, 161864036, 202330045, 404660090, 809320180]

約数ペア:

[(1, 809320180), (2, 404660090), (4, 202330045), (5, 161864036), (10, 80932018), (20, 40466009), (107, 7563740), (214, 3781870), (428, 1890935), (509, 1590020), (535, 1512748), (743, 1089260), (1018, 795010), (1070, 756374), (1486, 544630), (2036, 397505), (2140, 378187), (2545, 318004), (2972, 272315), (3715, 217852), (5090, 159002), (7430, 108926), (10180, 79501), (14860, 54463)]