80486320

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5107}}^1$

素因数の和:5317

約数の個数: 40

約数和(自身を含む): 188117424

約数和(自身を除く): 107631104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 5107, 7880, 10214, 15760, 20428, 25535, 40856, 51070, 81712, 102140, 204280, 408560, 1006079, 2012158, 4024316, 5030395, 8048632, 10060790, 16097264, 20121580, 40243160, 80486320]

約数ペア:

[(1, 80486320), (2, 40243160), (4, 20121580), (5, 16097264), (8, 10060790), (10, 8048632), (16, 5030395), (20, 4024316), (40, 2012158), (80, 1006079), (197, 408560), (394, 204280), (788, 102140), (985, 81712), (1576, 51070), (1970, 40856), (3152, 25535), (3940, 20428), (5107, 15760), (7880, 10214)]