168801680

素因数分解:

$2^4\times 5^1\times {\mathrm{2110021}}^1$

素因数の和:2110034

約数の個数: 20

約数和(自身を含む): 392464092

約数和(自身を除く): 223662412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2110021, 4220042, 8440084, 10550105, 16880168, 21100210, 33760336, 42200420, 84400840, 168801680]

約数ペア:

[(1, 168801680), (2, 84400840), (4, 42200420), (5, 33760336), (8, 21100210), (10, 16880168), (16, 10550105), (20, 8440084), (40, 4220042), (80, 2110021)]