16988080

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1621}}^1$

素因数の和:1765

約数の個数: 40

約数和(自身を含む): 39823344

約数和(自身を除く): 22835264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 1621, 2096, 2620, 3242, 5240, 6484, 8105, 10480, 12968, 16210, 25936, 32420, 64840, 129680, 212351, 424702, 849404, 1061755, 1698808, 2123510, 3397616, 4247020, 8494040, 16988080]

約数ペア:

[(1, 16988080), (2, 8494040), (4, 4247020), (5, 3397616), (8, 2123510), (10, 1698808), (16, 1061755), (20, 849404), (40, 424702), (80, 212351), (131, 129680), (262, 64840), (524, 32420), (655, 25936), (1048, 16210), (1310, 12968), (1621, 10480), (2096, 8105), (2620, 6484), (3242, 5240)]