408034940

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{31729}}^1$

素因数の和:32381

約数の個数: 24

約数和(自身を含む): 858233040

約数和(自身を除く): 450198100

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 6430, 12860, 31729, 63458, 126916, 158645, 317290, 634580, 20401747, 40803494, 81606988, 102008735, 204017470, 408034940]

約数ペア:

[(1, 408034940), (2, 204017470), (4, 102008735), (5, 81606988), (10, 40803494), (20, 20401747), (643, 634580), (1286, 317290), (2572, 158645), (3215, 126916), (6430, 63458), (12860, 31729)]