83959280

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10391}}^1$

素因数の和:10505

約数の個数: 40

約数和(自身を含む): 197157024

約数和(自身を除く): 113197744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 10391, 20782, 41564, 51955, 83128, 103910, 166256, 207820, 415640, 831280, 1049491, 2098982, 4197964, 5247455, 8395928, 10494910, 16791856, 20989820, 41979640, 83959280]

約数ペア:

[(1, 83959280), (2, 41979640), (4, 20989820), (5, 16791856), (8, 10494910), (10, 8395928), (16, 5247455), (20, 4197964), (40, 2098982), (80, 1049491), (101, 831280), (202, 415640), (404, 207820), (505, 166256), (808, 103910), (1010, 83128), (1616, 51955), (2020, 41564), (4040, 20782), (8080, 10391)]